BookLingo vs 100ls
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BookLingo
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BookLingo is the most enjoyable way to learn a new language: simply by reading the books you love. Import any ebook in the language youβre learning and get instant translations of words or full sentences into your native language. Build your vocabulary naturally as you read, then strengthen it with interactive study modes between reading sessions. You can import your own ebook files directly from the Files app. You can also use Apple Intelligence to generate short stories for quick practice sessions or to explore the app with no ebook required. BookLingo additionally includes curated links to websites that offer royalty-free books you can download and read. --- Translations are powered by Google Translate. Each translation incurs a cost for the developerβplease consider subscribing to support the project and unlock unlimited translations. App Store screenshots generated with Screenshots.pro Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
100ls
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100LS helps you train English listening with real podcasts, synced subtitles, sentence replay, and bilingual translation. No flashcards. No drills. Just real audio, one sentence at a time. 100 Days Language Study Learn English through real podcasts. No flashcards, no drills. Learn English the way you actually use it. 100LS is built for learners who are past the basics and ready to train their ear on real, unscripted English. Pick a podcast episode you're curious about, hit play, and let the content do the teaching. Synchronized subtitles highlight word-for-word as audio plays. Tap any line to jump back and replay it. Toggle your native language translation on or off. Slow it down to catch every word, or speed it up to push your comprehension. Repeat until it clicks. Features Synced Subtitles Every word lands on screen exactly when it's spoken. Tap any subtitle line to jump to that moment in the audio β no scrubbing, no guessing. Native Language Translation Powered by Apple's on-device translation engine. Works offline. Toggle translations on when you need context, off when you want the challenge. Automatic Transcription No subtitles for an episode? 100LS generates them automatically using on-device speech recognition, then syncs them to the cloud so they load instantly next time. Variable Playback Speed 0.75x for close listening. 1x for natural pace. 1.25xβ2x for review. One tap to cycle through. Learning Analytics Track your daily listening time and streaks. Small numbers add up β 20 minutes a day compounds fast. Who it's for You've studied English. You can read it fine. But listening to native speakers still feels like catching every third word. 100LS is for that gap β the one between knowing the language and actually hearing it. Requirements iOS 17.0 or later. Translation requires iOS 18.0 β language models download once on first use. Privacy Policy: https://socratop.com/privacy User Terms: https://socratop.com/terms
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Verdict
BookLingo and 100ls are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. BookLingo sells 1 in-app purchase, starting at $0.99 per month and 100ls sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
BookLingo ships an update weekly, 100ls fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | BookLingo | 100ls |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly β better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad β better | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details β not scored | ||
| Size | 8 MB | 15 MB |
| Age rating | 4+ | 12+ |
| Developer | Fabrizio Demaria | Socratop Tech |
In-app purchases
BookLingo
- Pro Monthly$0.991 Month
100ls
- 100ls plus monthly1 Month trial$4.991 Month
- 100ls plus yearly7 Days trial$39.991 Year
- 100ls η»θΊ«δΌε$39.99









