Billy Frontier vs ZOOKEEPER DX
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Billy Frontier
Embark on a galactic adventure as a space cowboy eliminating alien outlaws. This 3D game blends arcade action with adventure, featuring intense duels, thrilling chases, and target practice. Experience a unique spaghetti western-inspired universe.
- Galactic outlaw hunting
- 3D space cowboy adventure
- Arcade-style duels
- Stampede evasion
- Shooting gallery challenges
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• WINNER of the Pocket Gamer Silver Award! Billy Frontier is a space cowboy who's mission is to rid the galaxy of alien outlaws. This is the most diverse 3D game you'll find for iOS - it is a combination of adventure game and arcade game with a whole lot of blood spewing action in-between! You'll test your reflexes in Duels, see if you can outrun a stampeding herd of Kanga-Cows (half kangaroo, half cow), hunt down alien bandits in gun battles, and blast catapulted critters out of the sky in the Shooting Gallery! This is a great game that pays homage to the spaghetti western genre!
ZOOKEEPER DX
Engage in a classic match-three puzzle game where you swap adjacent panels to line up three or more of the same color. Clear levels by catching a quota of animals, with multiple modes offering different challenges and scoring opportunities.
- Swap adjacent panels
- Match three or more animals
- Catch animals to clear levels
- Normal Mode
- Tokoton Mode (unlimited time)
- Score Attack Mode (3-minute challenge)
- Online multiplayer
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10 million people are playing! Zoo Keeper, the definitive action puzzle game finally available for iPhone/iPad/iPod touch! Aim for it! The Best Opp Zookeeper! [game description] This is a simple puzzle game with a simple rule: swap two panels next to each other, and line up three or more panels of the same color to make them disappear. Touch the animal you want to move and slide it in the direction of the animal you want to replace. If you line up 3 or more same animals vertically or horizontally, you can catch the animal. The level is cleared when a quota of animals are caught. [mode description] *Normal Mode Catch more than your quota of animals to clear all levels! *Tokoton Mode Level up with 100 animals! This is a challenging mode with unlimited time. *Score Attack Mode Try to score as many points as possible in a 3-minute challenge in Fever mode! You will receive a time extension when you score over 10,000 points and 100,000 points. *Play Zoo Keeper Online Play Zoo Keeper online for free! (Link to App Store "ZOOKEEPER BATTLE".) [ranking description] You can participate in the ranking by logging into Game Center and using Leaderboards. Compete with players around the world for high scores! [System Requirements] iOS 11 or later; iPhone 5s or later, iPad 5th generation or later, iPod touch 6th generation or later
Screenshots
Verdict
The clearest difference is monetization model: ZOOKEEPER DX at free against Billy Frontier's paid. ZOOKEEPER DX also leads on ratings volume (43 vs 14). Billy Frontier's advantage is iOS requirement (8.0 vs 11.0). On price, rating, review sentiment and update cadence 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
Billy Frontier costs $0.99 and ZOOKEEPER DX $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.7 for Billy Frontier against 3.7 for ZOOKEEPER DX. Both are backed by a comparable volume of ratings — 14 and 43 respectively. Written reviews are what separate them: 65% of Billy Frontier's written reviews are positive against 60% of ZOOKEEPER DX's.
Billy Frontier ships an update every 2 months, ZOOKEEPER DX every 3 months. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.
| Parameter | Billy Frontier | ZOOKEEPER DX |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 3.7 (14 ratings) | 3.7 (43 ratings) |
| Positive reviews | 64.7% of reviews — better | 60.3% of reviews |
| Number of ratings | 14 | 43 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 44 MB | 206 MB |
| Age rating | 12+ | 4+ |
| Developer | Pangea Software, Inc. | KITERETSU INC. |
Customer experience
Billy Frontier
ZOOKEEPER DX
User reviews
Billy Frontier
From 14 App Store ratingsWhat we love
- 🚀 Great graphics and sound
- 👍 Diverse gameplay modes
- 💡 Unique western-alien theme
- 🤑 Excellent value for money
Room to improve
- 🐛 Frequent crashes and bugs
- 🎯 Inaccurate shooting controls
- 🕰️ Short gameplay with limited content
- 🤔 Unintuitive control settings
ZOOKEEPER DX
From 43 App Store ratingsWhat we love
- 👍 Fun and addictive gameplay
- 👍 Cute and charming visuals
- 👍 Great for passing time
- 👍 Nostalgic for DS players
- 🚀 Smooth performance on newer devices
Room to improve
- 🐛 Compatibility issues on older devices
- 🐛 Choppy animations and frame rate
- 🐛 Unresponsive controls
- 🐛 Difficulty ramps up too quickly
- 🐛 Partial screen cutoff on iPhone
Bugs and requests
Billy Frontier
Reported bugs
4 issues- Game crashes on launch or during play
- Shooting controls not responsive or accurate
- Saved progress lost after crashes
- Control settings reset on each launch
Requested features
4 requests- More levels and gameplay modes
- Difficulty settings and progression
- Ability to save progress and high scores
- Customization options (e.g. disable blood)
ZOOKEEPER DX
Reported bugs
4 issues- Game crashes on launch for some users
- Leaderboards show impossible high scores
- Pause function can be exploited
- Inconsistent performance across devices
Requested features
5 requests- Add quest mode from DS version
- Include time attack and other game modes
- Allow disabling timer for casual play
- Implement local high scores with names
- Add colorblind accessibility options
In-app purchases
Billy Frontier
No in-app purchases
ZOOKEEPER DX
No in-app purchases
Questions
Is Billy Frontier free?
Is ZOOKEEPER DX free?
Which has better reviews, Billy Frontier or ZOOKEEPER DX?
Do Billy Frontier or ZOOKEEPER DX have ads?
Which is updated more often, Billy Frontier or ZOOKEEPER DX?
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