Photo Brain vs DiffDiff
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Photo Brain
This game challenges and enhances your photographic memory with increasingly difficult levels and time constraints. Test your recall abilities with sequences, numbers, and patterns.
- Tests photographic memory
- Improves memory skills
- Increasingly difficult levels
- Extreme mode
- Fast timing challenges
- Classic mode
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If you think your memory is good, then you have not yet tried this game. Tease your brain and put your memory game to a whole new level! Photo Brain is a game which not only tests but also improves your photographic memory. The current highest level played by us is 83. Can you beat that record? ◆At level 54: You have 0.25 seconds to recollect the number of green M&Ms from a pile of random ones! ◆At level 72: You have 0.2 seconds to remember a jumbled sequence of numbers and order them in ascending order based on location! ◆At level 83: We had 0.2 seconds to memorize a 10 digit phone number! Impossible? Mastered classic mode? Try EXTREME mode after level 25. Clear levels from an extremely fast timing clock, just pure memory no cheats no screenshots!!! If you like this game, comment on what level you are stuck on!
DiffDiff
Engage in a visual puzzle game that challenges your focus, speed, and pattern recognition. Identify the single tile that doesn't belong in a grid of nearly identical elements. Progress through levels, unlock new challenges, and compete with friends.
- Visual puzzle brain test
- Find the odd tile out
- Campaign with 366 levels
- Quick play modes (Classic, Time Attack, Survival, Zen)
- Daily challenges
- Twist modifiers for varied gameplay
- Progression tracking and achievements
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Train your eyes with fast visual puzzles built for focus, speed, and pattern recognition. DiffDiff is a find-the-difference brain test where every round asks one simple question: which tile does not belong? Look across a grid of almost-matching colors, letters, numbers, shapes, patterns, symmetry forms, and words. Tap the odd tile before your focus slips. Some puzzles are calm and clean. Others are deliberately subtle: a color shade shifts by a hair, a letter mirrors the wrong way, a shape loses one tiny detail, a pattern breaks its rhythm, or a word changes just enough to make your brain argue with your eyes. PLAY A FULL CAMPAIGN Work through a structured campaign with 366 levels across 6 puzzle worlds. Start with gentle color and letter puzzles, then unlock harder visual challenges built around shapes, patterns, symmetry, and word recognition. Earn stars, clear tracks, beat tougher levels, and build a profile that shows how sharp your eye has become. QUICK MODES FOR SHORT SESSIONS Jump into quick play when you want a fast challenge without following the campaign path. Classic gives you focused rounds with clean scoring. Time Attack gives you 60 seconds to find as many odd tiles as possible. Survival rewards correct taps and punishes mistakes with the clock. Zen removes the timer so you can settle into the puzzle flow. DAILY CHALLENGES Come back for a daily challenge built for quick focus. Keep your streak warm, compare scores, and turn one small puzzle into a daily habit. It is the kind of eye test that fits between messages, coffee, meetings, or the moment you almost opened another feed. TWIST MODIFIERS When normal grids get too easy, twist modes change the rules. Flash, memory, motion, ghost tiles, rotating puzzles, morphing tiles, peripheral vision challenges, and flashlight-style reveals make familiar puzzles feel new again. These modes are built for players who want more than a simple spot-the-difference game. PROGRESSION THAT STICKS DiffDiff tracks more than wins. Earn stars, build streaks, unlock titles, complete achievements, improve reaction speed, and push your score higher. Every level is short, but progress adds up. HINTS WHEN YOU NEED THEM Use hints when a puzzle gets stubborn. Free players receive a daily hint allowance. Extra hints can be earned or purchased, and premium unlocks increase daily hints while opening more content. COMPETE AND SHARE Use Game Center leaderboards to compare progress and scores. Share score challenges so friends can try the same puzzle setup and see who spots the odd tile faster. BUILT FOR GLOBAL PLAY The app supports in-app language selection and localized interface text, so players can switch languages directly from Settings. The puzzle loop stays simple, but the content keeps testing attention, memory, reaction speed, and visual logic. PREMIUM UNLOCKS The free game gives you the core loop. The full unlock opens premium worlds, twist modifiers, removes ads, and raises the daily hint allowance. A separate remove-ads option is available if you want the free plan without interruptions. WHY PLAY DIFFDIFF? - Quick visual puzzle rounds - 366 campaign levels - 6 puzzle worlds - Color, letter, shape, pattern, symmetry, and word puzzles - Classic, Time Attack, Survival, and Zen quick modes - Daily challenges and streaks - Twist modifiers for harder focus tests - Stars, achievements, titles, and leaderboards - Optional hints, rewarded hints, and premium unlocks - Built for short breaks and repeat play DiffDiff is for players who like sharp little puzzles: the satisfying second when the one wrong tile finally gives itself away, the tiny win after a busy day, and the quiet itch to try one more round. Terms: https://www.pixelport.io/app/diffdiff-find-the-difference/terms-diff Privacy: https://www.pixelport.io/app/diffdiff-find-the-difference/privacy-diff EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: DiffDiff at 5.0 against Photo Brain's 4.1. Photo Brain's advantage is in-app purchases (none vs 5) and ads (none vs shown). 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
Both are free to download. DiffDiff sells 5 one-off in-app purchases. Photo Brain asks for nothing beyond the download.
DiffDiff holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Photo Brain has 9 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Photo Brain | DiffDiff |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (9 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 69.2% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 64 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | SweatyChair Pty. Ltd. | PixelPort LLC |
Customer experience
Photo Brain
DiffDiff
In-app purchases
Photo Brain
No in-app purchases
DiffDiff
- 20 Hints$0.99
- 60 Hints$2.99
- 140 Hints$5.99
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- Remove Ads$6.99
- Unlock Everything$10.99









