Comparison

Sherlock ULTRA vs RobozzleReboot

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

Head to head
About

Sherlock ULTRA

Engage your deductive reasoning with a digital logic puzzle game. Solve intricate 4x4, 5x5, or 6x6 grids by deciphering graphical clues to determine the exact placement of images. With thousands of unique puzzles, it offers endless brain-training challenges.

Highlights
  • Logic grid puzzles
  • Graphical clue system
  • Multiple grid sizes (4x4, 5x5, 6x6)
  • Thousands of unique puzzles
  • Deductive reasoning challenges
Features
Read full description

Sherlock is a computerized version of logic puzzles, where you're presented with a series of clues that help you determine the exact locations of all the images on the playing board. The puzzles are all 4x4, 5x5 or 6x6. Each row of the puzzle contains images of the same type (faces, houses, numbers, fruit, street signs, letters, etc). The game scrambles the locations of the items in each row (without showing you their locations) and then presents to you a set of graphical clues that describe the positional relationships of different images. You use the clues to deduce where things can't be (and where they HAVE to be) until you know where all of the images are located. 2500 puzzles in each size for a total of 7500 puzzles! The puzzles in the Free, Pro, Ultra, and Zen versions of the game are all unique, the four versions of the game share NO common puzzles.

About

RobozzleReboot

Guide a robot through grid-based puzzles by dragging and dropping programming instructions. Collect all stars and reach the goal. Features a campaign, community-created levels, and a puzzle editor.

Highlights
  • Drag-and-drop programming interface
  • Campaign mode with curated puzzles
  • Community puzzle catalog
  • Built-in puzzle editor
  • Global leaderboard integration
  • Step-by-step program execution
Features
Read full description

Robozzle Reboot brings back the classic robot-programming puzzle game to iOS — write tiny programs to guide a robot around a grid, collect every star, and reach the end. No syntax to memorize: every puzzle is solved by dragging instructions into place. HOW IT WORKS Program your robot with a small set of building blocks: move forward, turn left, turn right, paint a tile, and call one of five subroutines (F1–F5). Any instruction can be conditioned on the color of the tile the robot is standing on, so a handful of slots can express surprisingly deep logic. Run your program step-by-step or at full speed, and iterate until every star is collected. CAMPAIGN + COMMUNITY PUZZLES Work through a curated Campaign of puzzles from Robozzle's original creators, sorted by difficulty from your first steps to genuine head-scratchers. Or dive into Community Puzzles — the full catalog, searchable and sortable, with ratings from other players. BUILD YOUR OWN Design and publish your own puzzles with the built-in puzzle editor. Lay out the grid, place stars and colored tiles, test your solution, then share it with the community. TRACK YOUR PROGRESS Sign in with Apple to claim a pseudonym, appear on the global Leaderboard, and rate the puzzles you play. Earn points for every puzzle you solve, and pick up right where you left off — your progress is saved automatically. NEW TO ROBOZZLE? Start with the in-app Tutorials, a short series of levels that introduce each instruction one at a time. Robozzle is an original game by Igor Ostrovsky and other contributors (robozzle.com). Robozzle Reboot is a fresh implementation, built with the original author's agreement.

Screenshots

Sherlock ULTRA3 screens
RobozzleReboot4 screens

Verdict

The call

The clearest difference is price: RobozzleReboot at Free against Sherlock ULTRA's $3.99. RobozzleReboot also leads on update cadence (every 4 weeks vs every 12 months) and rating (5.0 vs 4.6). Sherlock ULTRA's advantage is ratings volume (31 vs 1) and iOS requirement (8.0 vs 13.0). On ads, in-app purchases, monetization model 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

RobozzleReboot is free to download; Sherlock ULTRA costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

RobozzleReboot holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Sherlock ULTRA has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 82% of Sherlock ULTRA's written reviews are positive against 100% of RobozzleReboot's.

UpkeepUpdate frequency

Sherlock ULTRA ships an update every 12 months, RobozzleReboot every 4 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard6 real differences · 4 level
Sherlock ULTRA versus RobozzleReboot: the parameters behind the verdict, then further details
ParameterSherlock ULTRARobozzleReboot
Price$3.99Free — better
Rating4.6 (31 ratings)5.0 (1 ratings) — better
Positive reviews82.4% of reviews100.0% of reviews — better
Number of ratings31 — better1
Update frequencyEvery 12 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size7 MB21 MB
Age rating4+4+
DeveloperEverett Kaser SoftwareNicolas Widynski

Customer experience

Sherlock ULTRA

All ratings31 ratings
Positive87.1%
Neutral3.2%
Negative9.7%
Written reviews51 reviews
Positive82.4%
Neutral5.9%
Negative11.8%

RobozzleReboot

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Sherlock ULTRA

Reported bugs

10 issues
  • App crashes after ~100 puzzles, requires reinstall
  • App crashes when loading certain puzzle sizes (4x4, 5x5)
  • App crashes when moving to another puzzle
  • Game crashes around puzzle 676
  • App won't load or closes immediately
Show 5 more
  • App freezes when trying to play next puzzle or select wrong choice (iOS 8)
  • Game doesn't display all clues sometimes
  • App crashes often after playing 70-80 games
  • App will not download after purchase
  • Touch interface mistakes touches for holds

Requested features

5 requests
  • List of characters (Sherlock, Watson, etc.)
  • Improved graphics (optional)
  • More puzzle games from developer
  • Moriarty game on iOS
  • More varied tile sets and clue variety

RobozzleReboot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Sherlock ULTRA

No in-app purchases

None

RobozzleReboot

No in-app purchases

Questions

Is Sherlock ULTRA free?
Sherlock ULTRA costs $3.99, with no in-app purchases.
Is RobozzleReboot free?
RobozzleReboot is free to download, with no in-app purchases.
Which has better reviews, Sherlock ULTRA or RobozzleReboot?
RobozzleReboot is rated higher. Sherlock ULTRA averages 4.6 out of 5 from 31 ratings, while RobozzleReboot averages 5.0 from 1 ratings.
Do Sherlock ULTRA or RobozzleReboot have ads?
Neither Sherlock ULTRA nor RobozzleReboot shows ads.
Which is updated more often, Sherlock ULTRA or RobozzleReboot?
Sherlock ULTRA ships an update every 12 months, and RobozzleReboot every 4 weeks. Most recently, Sherlock ULTRA was updated on November 2, 2026 and RobozzleReboot on October 31, 2026.

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