Comparison

BTLB vs Audia

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

Head to head
About

BTLB

Features
Read full description

BTLB | bɪtlɪb | is your progressive library companion for libraries within Stiftung Hamburger Öffentliche Bücherhallen and Gemeinsamer Bibliotheksverbund! As a pioneer in regards to an App for managing your library account, BTLB offers what you’d expect from a library in the modern age. Always have your library account under control - with the Widget the next expiry date is just a glance away! Siri is your friend when you'd like to renew or search for an item. Say "Renew items with bɪtlɪb" and the Shortcut to renew your items will be triggered. Configure if and when you want to receive reminder notifications before items are due and renew them directly from the notification. The UI design aims to be plain and simple. Light and Dark Mode, accessibility and dynamic font are supported. And regarding your search history - that’s being synchronised across your devices. Tracking does not happen within BTLB, no user data is tracked and your account information stays in your keychain. BTLB enables you to synchronise your German library account with your device: you can see which items you have borrowed and how much you owe the libraries for tardily returning them. You can interact with your library as the App can renew items with a tap of your finger. Searching your favorite library allows to check on available items and store them locally in your bookmarks. Generate AI recommendations based on your bookmarks and check availability in your local library. Stiftung Hamburger Öffentliche Bücherhallen supports both account synchronization and search, others (libraries in GBV) only support search at the moment – they will regain account synchronization in the future. Enjoy BTLB | bɪtlɪb | and happy reading! P.s.: please don't hesitate and let me know if there is an inconvenience in usability for you. Any feedback and suggestions are most welcome.

About

Audia

Listen to your documents, books, and articles with natural-sounding voices. Customize reading speed, pronunciation, and use a sleep timer. Import various file formats and read offline.

Highlights
  • Natural neural voices
  • Adjustable reading speed
  • Customizable pronunciation
  • Sleep timer
  • Offline reading
  • Import various file formats
  • Library organization
Features
Read full description

Listen to your books, PDFs and articles while you walk, commute or rest your eyes. Audia reads your text aloud on your iPhone or iPad, with natural voices and no subscription. READ WITH YOUR EYES OR YOUR EARS Choose from 15 built-in neural voices across 31 reading languages. Adjust the speed, follow the highlighted words, set a sleep timer and customize pronunciation. Organize your library in folders and transfer documents from your computer over local Wi-Fi. YOUR TEXT, NARRATED ON YOUR DEVICE Imported content can be read aloud offline, without uploading it to a speech service. Internet is needed to fetch web articles and download books from Audia Library. START FREE. UPGRADE ONCE. The free plan has a daily limit on premium-voice listening. Audia Plus is a one-time in-app purchase for unlimited premium listening, CarPlay, bookmarks, full-book search and M4A audio export. BRING YOUR BOOKS OR FIND A NEW READ Import DRM-free EPUB, PDF with selectable text, MOBI/AZW/PRC, TXT, RTF, DOCX, ODT and FB2, or paste text and web articles. Protected ebooks and image-only PDFs are not supported. Explore classics and Audia Originals in Audia Library. The library gradually grows with new titles. Books have no additional charge; your plan's listening limits still apply. Tap + to explore and start listening.

Screenshots

BTLB4 screens
Audia4 screens

Verdict

The call

The clearest difference is update cadence: Audia at every 4 days against BTLB's monthly. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BTLB ships an update monthly, Audia every 4 days. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

Scorecard1 real difference · 9 level
BTLB versus Audia: the parameters behind the verdict, then further details
ParameterBTLBAudia
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.2 — better18.0
Further details — not scored
Size20 MB246 MB
Age rating4+4+
DeveloperMartin Kim Đưng-PhạmLeopoldo Manuel Romacho

In-app purchases

None

BTLB

No in-app purchases

None

Audia

No in-app purchases

Questions

Is BTLB free?
BTLB is free to download, with no in-app purchases.
Is Audia free?
Audia is free to download, with no in-app purchases.
Do BTLB or Audia have ads?
Neither BTLB nor Audia shows ads.
Which is updated more often, BTLB or Audia?
BTLB ships an update monthly, and Audia every 4 days. Most recently, BTLB was updated on October 5, 2026 and Audia on October 17, 2026.

Other comparisons