Comparison

Ooly vs BookJack Player

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

Head to head
About

Ooly

This app offers interactive stories designed to teach children about the importance of sleep. It includes a positive reinforcement activity to encourage good habits and features an 'Image Mode' for reduced sensory stimulation, making it suitable for atypical children.

Highlights
  • Interactive stories for children
  • Teaches importance of good sleep
  • Positive reinforcement activity
  • Image Mode for reduced stimulation
  • Age-appropriate stories (1-8 years)
Features
Read full description

Lovely stories that help your child understand the importance of a good night’s sleep. Includes an interactive positive reinforcement activity to motivate and encourage your child to continue his efforts. "Ooly Stories" is an educational and positive reinforcement App, it is not a bedtime story app. Watching a screen before bed and interaction with one impairs sleeping. Screen-based stories should not be used as a method to help a child sleep. Includes three age-appropriate stories (1-2, 3-4, and 5-8 years old). Suitable for atypical children thanks to a unique "Image Mode" option that allows reducing sensory stimulation.

About

BookJack Player

This app provides a clean and powerful way to listen to your personal audiobook collection. Import your M4B, M4A, MP3, or FLAC files and enjoy features like adjustable playback speed, smart controls, and a sleep timer.

Highlights
  • Import personal audiobook files (M4B, M4A, MP3, FLAC)
  • Custom folders and search functionality
  • Adjustable playback speed (0.5x - 3.0x)
  • Smart rewind and skip controls
  • Sleep timer
  • Chapter navigation and bookmarks
  • Dark and Light Mode
Features
Read full description

Ever wish you had more time? While listening to Start With Why by Simon Sinek, I realized our why: audiobooks give you time back. BookJack was built for your library, so you can listen anywhere... on your commute, at the gym, or even as you fall asleep. It’s the clean, no-nonsense player that makes audiobooks feel like a third arm in your life. Import. Play. Repeat. Drop in your M4B, M4A, MP3, or FLAC files and get listening. Developed by Brett & Dane Library • Import your own files or whole folders • Custom folders & search by title/author • Sort by title, author, date, or progress Playback • Adjustable speed (0.5x – 3.0x) • Smart rewind & skip controls • Volume boost + sleep timer • Chapter navigation & bookmarks Experience • Dark & Light Mode • Custom accent colors • Mini player & full-screen player • Clean, modern SwiftUI design Why BookJack? BookJack is designed for audiobook enthusiasts who want a simple, powerful, and beautiful way to manage and enjoy their own digital library. Built with SwiftUI and SwiftData, it delivers fast performance, a modern design, and a truly native iOS experience. Supported formats: M4B, M4A, MP3, FLAC

Screenshots

Ooly4 screens
BookJack Player4 screens

Verdict

The call

The clearest difference is review sentiment: Ooly at 80% against BookJack Player's 0%. Ooly also leads on rating (5.0 vs 2.0) and update cadence (every 10 days vs every 6 months). On price, ratings volume, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

Ooly holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 80% of Ooly's written reviews are positive against 0% of BookJack Player's.

UpkeepUpdate frequency

Ooly ships an update every 10 days, BookJack Player every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Ooly versus BookJack Player: the parameters behind the verdict, then further details
ParameterOolyBookJack Player
PriceFreeFree
Rating5.0 (1 ratings) — better2.0 (2 ratings)
Positive reviews80.0% of reviews — better0.0% of reviews
Number of ratings12 — better
Update frequencyEvery 10 days — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better18.5
Further details — not scored
Size697 MB92 MB
Age rating4+4+
DeveloperNovo123 Inc.Brett Ridenour

Customer experience

Ooly

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

BookJack Player

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Ooly

No in-app purchases

None

BookJack Player

No in-app purchases

Questions

Is Ooly free?
Ooly is free to download, with no in-app purchases.
Is BookJack Player free?
BookJack Player is free to download, with no in-app purchases.
Which has better reviews, Ooly or BookJack Player?
Ooly is rated higher. Ooly averages 5.0 out of 5 from 1 ratings, while BookJack Player averages 2.0 from 2 ratings.
Do Ooly or BookJack Player have ads?
Neither Ooly nor BookJack Player shows ads.
Which is updated more often, Ooly or BookJack Player?
Ooly ships an update every 10 days, and BookJack Player every 6 months. Most recently, Ooly was updated on November 3, 2026 and BookJack Player on October 30, 2026.

Other comparisons