99 Problems vs DUAL!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
99 Problems
Navigate a minimalist world through 99 challenging levels. Evade obstacles and wall-jump your way to victory in this addictive hardcore game. Experience a seamless stream of challenges designed for maximum fun.
- 99 challenging levels
- Minimalist design
- Obstacle evasion
- Wall-jumping mechanics
- Hardcore fun
Read full descriptionHide full description
~ 2016 Mega Update ~ Dash your way through 99 challenging levels in this minimalist masterpiece of hardcore fun! Navigate a seamless stream of obstacles by evading and wall-jumping your way to the next checkpoint. "Very hard, super fun, extremely addictive!"
DUAL!
Engage in local multiplayer fun with friends using your mobile devices. Connect via WiFi or Bluetooth to play competitive or cooperative games by shooting from one screen to another. Enjoy classic duels, team defense, or goal-scoring challenges.
- Local multiplayer over WiFi or Bluetooth
- Competitive and cooperative modes
- DUEL: Classic standoff
- DEFEND: Cooperative defense
- DEFLECT: Goal-scoring game
- Unlockable color sets
- Stats, achievements, and leaderboards
Read full descriptionHide full description
Between people, across screens. DUAL is a local multiplayer game where two players use their mobile devices to shoot from one screen to the other. It's easy to pick up and play any of the competitive or cooperative modes: DUEL, DEFLECT, and DEFEND. Features: + Battle locally over WiFi or Bluetooth. + DUEL - Tilt your phone, dodge bullets, charge, and shoot your friends in this classic duel standoff. + DEFEND - Work together to defend the middle from an onslaught of attackers. + DEFLECT - Score goals by blasting, banking, and curving the ball from one screen to the other. + Only one person needs to have the full version unlocked to play DEFEND and DEFLECT with another player. + Collectable color sets unique to your device; unlock them all by playing against different people. + Single one-time in-app purchase to unlock the full game, and restore it on all your devices using the same account. + Stats, achievements, and leaderboards. "Working together right next to each other really brings back the magic of couch gaming." - Chris Carter, Destructoid "...it's a really fun way to engage with another live human, up-close and personal." - Rick Broida, CNET "You play it with someone, anywhere, and it actually brings you closer together..." - Chris Priestman, Kill Screen "...sending bullets across to someone else’s phone as you sit opposite them has a curious sense of technological magic to it." - Chris Charlton, Kaijupop Quick Troubleshooting Guide: + Make sure your WiFi is enabled and both players are on the same WiFi network. + Use Manual IP Discovery from the WiFi lobby if unable to find each other while on the same WiFi network. + To restore your purchase go to the Unlock screen and select the Restore Purchases button.
Screenshots
Verdict
The clearest difference is ratings volume: DUAL! at 2.4K against 99 Problems's 38. 99 Problems's advantage is rating (4.3 vs 4.1) and review sentiment (74% vs 65%). On price, update cadence, 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
Both are free to download. 99 Problems sells 1 one-off in-app purchase and DUAL! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
99 Problems holds the better App Store score, 4.3 against 4.1. That said, the two scores are not equally well evidenced: DUAL! has 2.4K ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 74% of 99 Problems's written reviews are positive against 65% of DUAL!'s.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | 99 Problems | DUAL! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (38 ratings) — better | 4.1 (2.4K ratings) |
| Positive reviews | 74.2% of reviews — better | 64.7% of reviews |
| Number of ratings | 38 | 2.4K — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.1 — better | 11.0 |
| Further details — not scored | ||
| Size | 24 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Mamau ApS | Seabaa, Inc. |
Customer experience
99 Problems
DUAL!
Bugs and requests
99 Problems
Not enough reviews yet to summarise bugs or requests.
DUAL!
Reported bugs
7 issues- Trying to connect is not working with others
- Cannot play with others on the same network
- Restore purchases not working
- Couldn't play in class
- I can't move
Show 2 moreShow fewer
- Login screen freezes
- Incompatible with older devices
Requested features
10 requests- 💡 Add more game modes
- 💡 Add single player mode
- 💡 Add online multiplayer
- 💡 Add more ships/characters
- 💡 Add joystick controls
Show 5 moreShow fewer
- 💡 Add more free ships/characters
- 💡 Add AI/bots to play against
- 💡 Add more levels/difficulty
- 💡 Add worldwide/online multiplayer
- 💡 Add team/doubles mode
In-app purchases
99 Problems
- Remove Ads$0.99
DUAL!
- Full Game Unlock$2.99









