Comparison

The Einstein`s Riddle vs Spot The Diff

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

Head to head
About

The Einstein`s Riddle

Engage your mind with challenging logic puzzles, including a modern take on the classic 15 Puzzle and the timeless Peg Solitaire. Test your reasoning skills with evolving rules and progressive difficulty across various game modes, designed to keep your brain sharp and active.

Highlights
  • Logic puzzle experience
  • Slide Puzzle (15 Puzzle)
  • Peg Solitaire
  • Multiple game modes (Classic, Timer, Challenge)
  • Progressive campaign mode
  • Modern visuals and animations
  • Brain training exercises
Features
Read full description

Einstein’s Riddle is a logic puzzle experience designed to challenge your mind and reasoning skills. Do you dare to face the riddle Albert Einstein claimed was impossible for 98 percent of the population? Discover if you belong to the 2 percent who truly master logical thinking. In Einstein’s Riddle, classic logic puzzles are presented with modern visuals, smooth animations and evolving rules that constantly challenge the way you think. Every move matters and every decision has consequences. This game pushes your mental limits in an experience where logic and controlled chaos go hand in hand. Slide Puzzle (15 Puzzle) Arrange the board, race against time and adapt to changing rules inspired by Einstein himself. The classic 15 Puzzle returns with progressive difficulty and multiple game modes that demand strategy and quick thinking. Available game modes include 1. Classic Mode, solve puzzles at your own pace with no time pressure 2. Timer Mode, race against the clock and improve your performance 3. Challenge Mode, each level introduces new mechanics such as bombs, frozen tiles and locked pieces Campaign mode features progressive worlds with 3x3, 4x4 and 5x5 boards. Each stage increases difficulty and introduces new mechanics, creating a true test of logic, memory and focus. The game features a clean interface, vibrant colors and fluid animations designed for clarity and immersion. This is a smart, fun and highly engaging puzzle experience. Peg Solitaire In addition to the Slide Puzzle, Einstein’s Riddle also includes Peg Solitaire, a timeless logic challenge. The objective is simple but difficult to master. Remove all pegs from the board until only one remains. Key characteristics include traditional rules, strategic moves that require planning and foresight, and gameplay that encourages concentration, patience and logical reasoning. Peg Solitaire offers a calm, elegant and deeply satisfying experience. Train your brain every day Logic puzzles are more than entertainment. They stimulate reasoning, memory and problem solving skills, helping keep the mind active, sharp and engaged over time. Whether you want to relax, challenge yourself or simply keep your brain active, Einstein’s Riddle is a reliable companion for anyone who enjoys thinking, learning and mental growth at any age. Train your mind. Enjoy the challenge. Discover how far your reasoning can go.

About

Spot The Diff

Features
Read full description

Train your eyes with three relaxed visual puzzle modes in one colorful collection. SPOT THE DIFFERENCE Compare two detailed scenes and tap every hidden change. HIDDEN OBJECTS Search a richly illustrated scene for every object on your list. ODD ONE OUT Study four choices and identify the one that does not belong. MULTIPLAYER Start a one-device Quick Play match or create and join private rooms with friends. Choose a player name, compare results, and race to find every change. FEATURES - Three distinct visual puzzle modes - Mixed themes and an expanding level collection - Helpful hints, magnifiers, and reveals - Clear progress tracking and daily rewards - Single-player does not require an account - Sign-in is required for cloud save and multiplayer - Touch-friendly layouts for iPhone and iPad Play at your own pace, use a power-up when you need a nudge, and move straight into the next visual challenge.

Screenshots

The Einstein`s Riddle3 screens
Spot The Diff4 screens

Verdict

The call

The clearest difference is in-app purchases: The Einstein`s Riddle at none against Spot The Diff's 5. The Einstein`s Riddle also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence 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. Spot The Diff sells 5 one-off in-app purchases. The Einstein`s Riddle asks for nothing beyond the download.

UpkeepUpdate frequency

The Einstein`s Riddle ships an update every 3 weeks, Spot The Diff every 10 days. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
The Einstein`s Riddle versus Spot The Diff: the parameters behind the verdict, then further details
ParameterThe Einstein`s RiddleSpot The Diff
PriceFreeFree
Rating4.3 (28 ratings) — better—
Positive reviews41.2% of reviews—
Number of ratings28 — better—
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size47 MB79 MB
Age rating12+4+
DeveloperRodrigo DaboitMISTIX WATERS LLP

In-app purchases

None

The Einstein`s Riddle

No in-app purchases

5 purchases

Spot The Diff

One-time5
  • Small Coin Pack$0.99
  • Medium Coin Pack$4.99
  • Remove Ads$4.99
Show 2 more
  • Large Coin Pack$9.99
  • Mega Coin Pack$19.99

Questions

Is The Einstein`s Riddle free?
The Einstein`s Riddle is free to download, with no in-app purchases.
Is Spot The Diff free?
Spot The Diff is free to download, with in-app purchases available.
Do The Einstein`s Riddle or Spot The Diff have ads?
Spot The Diff shows ads; The Einstein`s Riddle does not.
Which is updated more often, The Einstein`s Riddle or Spot The Diff?
The Einstein`s Riddle ships an update every 3 weeks, and Spot The Diff every 10 days. Most recently, The Einstein`s Riddle was updated on June 1, 2026 and Spot The Diff on September 24, 2026.

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