Comparison

Obby's Prison Escape vs Harmonic Drive

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

Head to head
About

Obby's Prison Escape

Test your bravery against a formidable opponent in this challenging game. Outwit your adversary by anticipating their every move and executing your strategy flawlessly. Prove your skills and emerge victorious.

Highlights
  • Strategic gameplay
  • Challenging opponent
  • Anticipate moves
  • Test your courage
  • Outwit adversary
Features
Read full description

You get tired of playing with someone who can infer your favorite moves. Summon your courage and challenge the only opponent strong enough!

About

Harmonic Drive

Experience a high-energy rhythm game where precise timing is key. Tap, hold, and flow through dynamic note charts with vibrant visuals and challenging difficulty levels. Master the beat and chase high scores with a satisfying combo system.

Highlights
  • Dynamic note charts
  • Multiple difficulty levels
  • Multiplayer & Leaderboards
  • Responsive controls
  • Visually immersive interface
  • Performance-based scoring
  • Combo system
Features
Read full description

Feel the Rhythm. Hit the Notes. Master the Music. Step into a high-energy rhythm experience where timing is everything. Tap, hold, and flow through dynamic note charts designed to challenge your precision and reaction speed. Whether you’re a casual player or a rhythm game veteran, this game delivers satisfying gameplay, vibrant visuals, and increasingly intense difficulty levels that keep you coming back for more. Features: • Multiple difficulty levels • Mutiplayer & Leaderboards • Smooth, responsive controls designed for accuracy • Dynamic note patterns synced to music • Visually immersive neon-style interface • Performance-based scoring system (Perfect, Good, Miss) • Combo system for high-score chasing Start simple and work your way up to complex, high-speed note charts. Each difficulty introduces new patterns and tighter timing windows to test your skill. Can you achieve a perfect run? Designed for Music Lovers Every track is carefully charted to match the rhythm and energy of the music, creating a deeply satisfying gameplay experience. New songs, features, and improvements are planned regularly to keep the experience fresh. Download now and start mastering the beat!

Screenshots

Obby's Prison Escape4 screens
Harmonic Drive4 screens

Verdict

The call

The clearest difference is review sentiment: Harmonic Drive at 100% against Obby's Prison Escape's 15%. Harmonic Drive also leads on rating (5.0 vs 2.9) and ads (none vs shown). Obby's Prison Escape's advantage is in-app purchases (none vs 10) and ratings volume (40 vs 1). On price 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. Harmonic Drive sells 10 one-off in-app purchases. Obby's Prison Escape asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Harmonic Drive holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Obby's Prison Escape has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 15% of Obby's Prison Escape's written reviews are positive against 100% of Harmonic Drive's.

UpkeepUpdate frequency

Obby's Prison Escape ships an update every 6 weeks, Harmonic Drive weekly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard8 real differences · 2 level
Obby's Prison Escape versus Harmonic Drive: the parameters behind the verdict, then further details
ParameterObby's Prison EscapeHarmonic Drive
PriceFreeFree
Rating2.9 (40 ratings)5.0 (1 ratings) — better
Positive reviews15.4% of reviews100.0% of reviews — better
Number of ratings40 — better1
Update frequencyEvery 6 weeksWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS11.0 — better18.6
Further details — not scored
Size393 MB658 MB
Age rating+44+
DeveloperAoi SoraKareel Hicks

Customer experience

Obby's Prison Escape

All ratings40 ratings
Positive42.5%
Neutral5.0%
Negative52.5%
Written reviews13 reviews
Positive15.4%
Neutral0.0%
Negative84.6%

Harmonic Drive

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Obby's Prison Escape

No in-app purchases

10 purchases

Harmonic Drive

One-time10
  • Right Now$0.99
  • We Were Infinite$0.99
  • Say It$0.99
Show 7 more
  • Open Skies$0.99
  • I Still Choose You$0.99
  • Space Drift$0.99
  • Lightwalk$0.99
  • I Found Your Name Inside A Notebook$0.99
  • Innerself v2$0.99
  • Tenacity$0.99

Questions

Is Obby's Prison Escape free?
Obby's Prison Escape is free to download, with no in-app purchases.
Is Harmonic Drive free?
Harmonic Drive is free to download, with in-app purchases available.
Which has better reviews, Obby's Prison Escape or Harmonic Drive?
Harmonic Drive is rated higher. Obby's Prison Escape averages 2.9 out of 5 from 40 ratings, while Harmonic Drive averages 5.0 from 1 ratings.
Do Obby's Prison Escape or Harmonic Drive have ads?
Obby's Prison Escape shows ads; Harmonic Drive does not.
Which is updated more often, Obby's Prison Escape or Harmonic Drive?
Obby's Prison Escape ships an update every 6 weeks, and Harmonic Drive weekly. Most recently, Obby's Prison Escape was updated on November 10, 2026 and Harmonic Drive on October 31, 2026.

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