Comparison

TIS vs Sumaddle

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

Head to head
About

TIS

Engage in an assembly language programming game where you rewrite corrupted code to fix a fictional computer. Explore a detailed manual, solve over 20 challenging puzzles, and design your own custom levels. Uncover the secrets of this unique retro-style computing experience.

Highlights
  • Assembly language programming puzzles
  • Code rewriting and debugging
  • Over 20 challenging puzzles
  • Design custom challenges
  • Explore retro computer manual
  • Unlock game secrets
Features
Read full description

TIS-100 is an open-ended programming game by Zachtronics, the creators of SpaceChem and Infinifactory, in which you rewrite corrupted code segments to repair the TIS-100 and unlock its secrets. It’s the assembly language programming game you never asked for! * Print and explore the TIS-100 reference manual, which details the inner-workings of the TIS-100 while evoking the aesthetics of a 1980’s computer manual! * Solve more than 20 puzzles, competing against your friends and the world to minimize your cycle, instruction, and node counts. * Design your own challenges in the TIS-100’s 3 sandboxes, including a “visual console” that lets you create your own games within the game! * Uncover the mysteries of the TIS-100… who created it, and for what purpose?

About

Sumaddle

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

Highlights
  • Interactive logic puzzles
  • Number combination fitting
  • Pure logic solving
  • Built-in help and mistake correction
  • Over 150 free puzzles
  • Offline play
  • Ad-free experience
Features
Read full description

• “Brilliant puzzle game”, UK App Store review Apr 2025 • “Best Puzzle Game I’ve Ever Played”, US App Store review Jan 2025 • “The ONLY iOS game I've never gotten tired of”, Reddit review Apr 2024 This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by adding the essential element of interaction. This transforms the puzzles into intriguing brain teasers that unfold before your eyes. Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you can focus on using logic to narrow down the combinations and find a fitting arrangement. Some reasons why you will enjoy playing Sumaddle: • puzzles range in size and difficulty from small and simple to large and mind-blowing • more than 150 puzzles are included for free • all puzzles can be solved with pure logic, no mental arithmetic required • the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong • the built-in help is completely free, use it as much as you like • works offline (great for long journeys) • a high standard of accessibility, including comprehensive support for VoiceOver • ad-free play - there are absolutely no ads! IGRS age rating (Indonesia Game Rating System): 3+ Designed and developed in Winterthur, Switzerland

Screenshots

Sumaddle3 screens

Verdict

The call

The clearest difference is price: Sumaddle at Free against TIS's $3.99. Sumaddle also leads on rating (4.9 vs 4.2) and review sentiment (95% vs 57%). TIS's advantage is in-app purchases (none vs 15) and iOS requirement (6.0 vs 16.0). On ads 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

Sumaddle is free to download; TIS costs $3.99 up front. Sumaddle sells 15 one-off in-app purchases. TIS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sumaddle holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Sumaddle has 767 ratings behind it against 65, so its average is the more settled of the two. Written reviews point the same way: 57% of TIS's written reviews are positive against 95% of Sumaddle's.

Scorecard7 real differences · 3 level
TIS versus Sumaddle: the parameters behind the verdict, then further details
ParameterTISSumaddle
Price$3.99Free — better
Rating4.2 (65 ratings)4.9 (767 ratings) — better
Positive reviews56.9% of reviews94.9% of reviews — better
Number of ratings65767 — better
Update frequency—Every 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPhone, iPad — better
Requires iOS6.0 — better16.0
Further details — not scored
Size77 MB30 MB
Age rating4+4+
DeveloperMetaversal StudiosJonathan Buchanan

Customer experience

TIS

All ratings65 ratings
Positive73.8%
Neutral12.3%
Negative13.8%
Written reviews51 reviews
Positive56.9%
Neutral17.6%
Negative25.5%

Sumaddle

All ratings767 ratings
Positive98.3%
Neutral0.7%
Negative1.0%
Written reviews98 reviews
Positive94.9%
Neutral1.0%
Negative4.1%

User reviews

TIS

From 65 App Store ratings

What we love

  • 🧠 Engaging programming puzzles
  • 💡 Educational and fun
  • ✨ Satisfying problem-solving
  • 🚀 Faithful PC port
  • 👍 Elegant UI

Room to improve

  • ⌨️ No external keyboard support
  • 📱 On-screen keyboard issues
  • 🤏 Small text size
  • 📐 Keyboard cutoff on smaller screens
  • 🤔 Steep learning curve for non-programmers

Sumaddle

From 767 App Store ratings

What we love

  • 👍 Fun and challenging game
  • 👍 Clean and intuitive interface
  • 👍 Helpful hint system
  • 🚀 No ads or data collection
  • 💡 Unique puzzle concept

Room to improve

  • 🐛 Automatic hints can be intrusive
  • 🐛 Inability to replay completed puzzles
  • 💡 Need more free/sample puzzles
  • 💡 Difficulty progression could be improved

Bugs and requests

TIS

Reported bugs

4 issues
  • Latest version has hitches/freezes
  • Keyboard cutoff on iPad Mini
  • Custom keyboard is clunky
  • Half keyboard accessible on some devices

Requested features

6 requests
  • Add external keyboard support
  • Improve on-screen keyboard usability
  • Allow text scaling/zoom
  • Make manual accessible in-app
  • Support iPhone
Show 1 more
  • Add dark mode

Sumaddle

Reported bugs

2 issues
  • Losing progress when minimizing the app
  • Inconsistent difficulty ratings

Requested features

4 requests
  • Ability to selectively pencil in notes
  • More difficult puzzle options
  • Synced progress across devices
  • Detailed statistics and leaderboard

In-app purchases

None

TIS

No in-app purchases

15 purchases

Sumaddle

One-time15
  • Quirky, Pack 5$0.99
  • Very Difficult Puzzles$0.99
  • Quirky, Pack 1$0.99
Show 12 more
  • Premium 9x9 Puzzles, Pack 1$0.99
  • Crafty, Pack 1$0.99
  • Crafty, Pack 2$0.99
  • Crafty, Pack 3$0.99
  • Sneaky, Pack 1$0.99
  • Sneaky, Pack 2$0.99
  • Sneaky, Pack 3$0.99
  • Tricky, Pack 1$0.99
  • Tricky, Pack 2$0.99
  • Tricky, Pack 3$0.99
  • Assorted Puzzles$0.99
  • Puzzle Generator$9.99

Questions

Is TIS free?
TIS costs $3.99, with no in-app purchases.
Is Sumaddle free?
Sumaddle is free to download, with in-app purchases available.
Which has better reviews, TIS or Sumaddle?
Sumaddle is rated higher. TIS averages 4.2 out of 5 from 65 ratings, while Sumaddle averages 4.9 from 767 ratings.
Do TIS or Sumaddle have ads?
Neither TIS nor Sumaddle shows ads.

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