Comparison

Teach Yourself Library vs PekiBook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Teach Yourself Library

Access free audio and learning resources to supplement your studies. Download materials to your personal library for anytime, anywhere learning. Sync your content across devices for a seamless experience.

Highlights
  • Free audio resources
  • Learning materials
  • Offline access
  • Cross-device syncing
  • Downloadable content
Features
Read full description

Discover a world of free audio and learning resources to accompany your Teach Yourself course. Teach Yourself has been trusted by learners for over 75 years to deliver expert learning materials across a wide range of topic areas – languages, business, careers, self-help, creative writing and hobbies. Now for the first time you can access any accompanying audio or learning resources in this free app. Download the resources to your Library and access anywhere anytime. You can even sign in from a different device and all your content will be queued for easy downloading. Teach Yourself: books that make life better.

About

PekiBook

Master Turkish with a comprehensive, adaptive learning system. This app offers bite-sized lessons, engaging games, and personalized feedback to guide you from beginner to advanced levels. Track your progress with motivating rewards and real-life dialogue practice.

Highlights
  • Adaptive learning paths
  • Daily focused tasks
  • Vocabulary and grammar games
  • Listening and speaking drills
  • Real-life dialogue trainer
  • A1-C2 curriculum
  • Progress tracking and rewards
Features
Read full description

PekiBook: Accelerate Your Turkish A complete A1 to C2 course built to outperform traditional classes in flexibility, convenience, and results. Tired of language classes that are too fast, too slow, or too generic? PekiBook is your smart Turkish tutor in your pocket. It adapts to your pace, style, and goals while giving you clear daily guidance, bite-sized practice, and motivating rewards so learning stays fast and fun. Learn your way: Structured and flexible Stop being rushed by faster students or held back by others. PekiBook puts you in control. • Truly adaptive learning: Speed up, slow down, skip ahead, or circle back. The path is yours. • Follow a recommended path (or not): We provide specific learning routes to guide you, but you may always jump between units and access all material freely. • Daily tasks: Short, focused tasks that tell you exactly what to do every day to keep momentum and make progress predictable. • Smart review system: Actively prevents forgetting and fixes misconceptions before they fossilize. Practice more, faster, and every day Get far more listening, speaking, and retry opportunities than a group classroom ever could. • Vocabulary games (less than 1 minute/day): Fast, addictive micro-games that boost retention and make daily practice painless. • Grammar games (less than 1 minute/day): Turn grammar into quick challenges to build accuracy and speed without boring drills. • Listening & speaking drills: Native-speed dialogues, instant voice analysis, and pronunciation coaching. • Real-life dialogue trainer: Practice informal vs. formal speech, slang, idioms, and regional variations for real interactions. Curriculum, tests & feedback A comprehensive course that actually measures your progress. • Complete A1 to C2 content: 26 units covering essential topics, grammar, vocab, and real-life functions. • End-of-unit exams: Proficiency checks at the end of each unit so you know exactly what you’ve mastered. • Expert feedback: Tutor-prepared explanations for exercises and detailed reviews for short writing tasks. Motivation that works We help you see progress and chase goals. • Medals & badges: Earn collectible achievements that show how far you’ve come and suggest next challenges. • Progress milestones: Clear markers and rewards for sticking to daily tasks, passing unit exams, and leveling up. Powerful learning tools Deep features when you want them, concise explanations when you don’t. • Choose your depth: Switch between short summaries and full grammar breakdowns instantly. • Interactive stories & flashcards: Tap any word to hear native pronunciation, see context-rich definitions, etymology, and grammar notes; create custom decks. • Grammar & suffix tools: Interactive drills, conjugation charts, suffix pattern builders, and references. • Comfort & accessibility: Light/dark modes, adjustable fonts. Join learners worldwide who trust PekiBook to master Turkish. Guided when you want guidance, free when you want to explore. Learn daily, earn medals, pass unit exams, and finish faster. Your Turkish, your rules. Download PekiBook and start today: short games, clear daily tasks, and real rewards with as little as one minute of studying a day.

Screenshots

Teach Yourself Library4 screens
PekiBook4 screens

Verdict

The call

The clearest difference is review sentiment: PekiBook at 100% against Teach Yourself Library's 31%. PekiBook also leads on rating (5.0 vs 3.9) and update cadence (weekly vs every 4 months). Teach Yourself Library's advantage is ratings volume (143 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Teach Yourself Library sells 16 one-off in-app purchases and PekiBook sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PekiBook holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Teach Yourself Library has 143 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 31% of Teach Yourself Library's written reviews are positive against 100% of PekiBook's.

UpkeepUpdate frequency

Teach Yourself Library ships an update every 4 months, PekiBook weekly. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Teach Yourself Library versus PekiBook: the parameters behind the verdict, then further details
ParameterTeach Yourself LibraryPekiBook
PriceFreeFree
Rating3.9 (143 ratings)5.0 (2 ratings) — better
Positive reviews30.5% of reviews100.0% of reviews — better
Number of ratings143 — better2
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.6 — better16
Further details — not scored
Size96 MB202 MB
Age rating4+17+
DeveloperHachette UK (Holdings)LimitedErenay Kaya

Customer experience

Teach Yourself Library

All ratings144 ratings
Positive71.5%
Neutral5.6%
Negative22.9%
Written reviews95 reviews
Positive30.5%
Neutral13.7%
Negative55.8%

PekiBook

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Teach Yourself Library

Reported bugs

89 issues
  • App doesn't open
  • Crashes on launch
  • Downloads not working
  • App keeps logging off
  • App not opening on iPhone
Show 84 more
  • App closing spontaneously
  • Requires internet connection when available
  • Crashes when features are selected
  • Arrow keys don't turn pages on Mac
  • UI is confusing
  • Clicking on buttons navigates pages
  • No way to pop from book to collection
  • Visual affordances lacking
  • Clicking page makes text appear/disappear
  • Book content broken across pages
  • Default font tiny, font settings don't work
  • App is unstable, crashes frequently
  • Doesn't save progress
  • Cannot play some downloaded audios
  • No way to re-download audios
  • App won't sign in
  • Buttons too small to click
  • Audio doesn't play
  • Yellow text on yellow background
  • No proper categories for genres
  • Little accessibility options
  • Menu is terrible, no easy way to select chapters
  • App port of a browser page
  • App says user has to pay for purchased content
  • Audio player doesn't stay on Lock Screen
  • Makes everything zoomed in and keyboard larger
  • Audio dialogues don't work well
  • App is rubbish
  • Forced to use phone, not laptop
  • Audio doesn't display track numbers
  • Video in ebook says highlighting words, but can't
  • Dictionary takes to external sites
  • App not updated for larger screens
  • Basic features like translation lookup missing
  • No support received
  • App says 'Coming Soon' for books
  • Unable to access purchased books or sign in
  • App quits or says 'coming soon' for audio
  • App closes automatically when reproducing a book
  • App closes automatically
  • App crashes when opening files
  • App crashes and won't open
  • Audio doesn't work with iOS 13
  • App keeps closed
  • App crashes when playing a chapter
  • Not compatible with iOS 13
  • App crashes constantly when tapping on a book
  • Audio app not working
  • App doesn't open and listenings can't be heard
  • Crashes on iOS 13
  • Not working since iOS 13 update
  • App crashes
  • App automatically shuts down when clicking a clip
  • Layout not compatible with iPads
  • Cannot play audio content
  • App closes when opening audio for Norwegian
  • Upgrade stopped French from working
  • Program keeps closing when trying to listen to lessons
  • Can't open ANYTHING
  • App crashing when choosing chapters/audio recordings
  • Audio no longer works
  • App crashes and shuts down when opening a new language
  • App isn't working, program closes when playing French
  • Not all languages available in audio library
  • Missing language audio (Serbian, Latvian)
  • App doesn't work from the beginning on iPhone X
  • Terrible to sign into
  • Doesn't allow profile creation or sign in via social media
  • Error message and sent back to first page when skipping sign in
  • No sound in ebook, icon present but no mention of audio
  • App crashes after each track play when switching pages
  • Downloading audio takes multiple retries
  • Confusing app, hard to find/access audio
  • No way to buy audiobooks or audio/book
  • Audio download is good, but better chapter labeling needed
  • App keeps closing even after uninstall/reinstall
  • App closes when clicking on a clip to play
  • Poor app design
  • Cannot download audio to iTunes or media player
  • Listening and re-listening is not intuitive
  • App is a mess
  • No control over content paid for
  • No clear pictures, up-to-date phrases, or easy audio access
  • Worst educational tool encountered

Requested features

15 requests
  • Track repeat functionality
  • More exercises, words, and grammar
  • Chapters listed as default
  • Shorter jump forward/back options
  • Audio player on lock screen
Show 10 more
  • Longer pause between tracks
  • Better chapter labeling for audio
  • Make all complete language audio available
  • Highlighting words in ebooks
  • Proper in-app dictionary
  • Update for larger screens
  • Allow use of other e-reader software
  • Download audio files to iTunes/media player
  • More pause time for practice
  • Add missing units

PekiBook

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

Teach Yourself Library

One-time16
  • Pack of 2 Tokens$1.99
  • Pack of 3 Tokens$2.99
  • Pack of 10 Tokens$9.99
Show 13 more
  • Pack of 11 Tokens$10.99
  • Pack of 13 Tokens$12.99
  • Pack of 15 Tokens$14.99
  • Pack of 17 Tokens$16.99
  • Pack of 18 Tokens$17.99
  • Pack of 20 Tokens$19.99
  • Pack of 25 Tokens$24.99
  • Pack of 26 Tokens$25.99
  • Pack of 27 Tokens$26.99
  • Pack of 30 Tokens$29.99
  • Pack of 35 Tokens$34.99
  • Pack of 50 Credits$49.99
  • Pack of 51 Credits$50.99
7 purchases

PekiBook

Subscriptions1
  • Premium Monthly Access$9.991 Month
One-time6
  • 20 Gems$0.99
  • 100 Gems$3.99
  • 300 Gems$9.99
Show 3 more
  • 700 Gems$19.99
  • 2000 Gems$49.99
  • 5000 Gems$99.99

Questions

Is Teach Yourself Library free?
Teach Yourself Library is free to download, with in-app purchases available.
Is PekiBook free?
PekiBook is free to download, with in-app purchases available.
Which has better reviews, Teach Yourself Library or PekiBook?
PekiBook is rated higher. Teach Yourself Library averages 3.9 out of 5 from 143 ratings, while PekiBook averages 5.0 from 2 ratings.
Do Teach Yourself Library or PekiBook have ads?
Neither Teach Yourself Library nor PekiBook shows ads.
Which is updated more often, Teach Yourself Library or PekiBook?
Teach Yourself Library ships an update every 4 months, and PekiBook weekly. Most recently, Teach Yourself Library was updated on October 21, 2026 and PekiBook on October 4, 2026.

Other comparisons