Comparison

SliceSum vs Decodex

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

Head to head
About

SliceSum

Engage your mind with a daily math puzzle game where you strategically place symbols between numbers to reach a target value. Enjoy quick, satisfying challenges with streak tracking and multiple difficulty levels. Play offline and keep your data private.

Highlights
  • Daily math puzzles
  • Number slicing gameplay
  • Streak tracking
  • Multiple difficulty levels
  • Offline play
  • Light and dark mode
Features
Read full description

SliceSum is a fun daily math puzzle game where you “slice” numbers by placing symbols between numbers to hit the target. You’ll get a number and a target value, then it’s up to you to find a clever solution. It’s easy to learn, satisfying to solve, and perfect for a quick brain boost. Why you’ll like it: • Quick puzzles you can play anytime • A new Daily Puzzle every day • Streak tracking and shareable results • Multiple difficulty levels as you improve • Hints when you need a little help • Clean design with light and dark mode Premium (one-time purchase) includes: • No ads • Hard + Very Hard modes • Hard Daily Puzzle • Unlimited hints • Current Total display SliceSum works offline for core gameplay, and your data stays on your device. If you enjoy number games, logic puzzles, and daily challenges, SliceSum is a great pick.

About

Decodex

Engage in a modern take on classic cryptogram puzzles. Decipher quotes and enigma codes across diverse categories. Track your progress, build streaks, and enjoy a new challenge daily.

Highlights
  • 50+ puzzle categories
  • Daily enigma challenges
  • Intuitive user interface
  • Progress tracking and streaks
  • Substitution cipher gameplay
Features
Read full description

Step into a world of logic and ciphers. Decodex transforms classic cryptogram puzzles into a modern, addictive mobile experience. Whether you’re a fan of wordy challenges, a wordsearch enthusiast, or an enigma-solving veteran, our puzzles will sharpen your mind one quote at a time. If you enjoy the daily ritual of the NYTimes Games or the deep strategy of a crypto game, Decodex is your new favorite obsession. Key Features: - 50+ Categories: From Ancient Philosophy to Modern Wit. - Daily Enigmas: A fresh substitution cipher every single day. - Intuitive UI: Designed for effortless logic-first play. - Track Your Progress: Earn stars, build streaks, and become a master codebreaker.

Screenshots

SliceSum4 screens
Decodex4 screens

Verdict

The call

The clearest difference is ads: Decodex at none against SliceSum's shown. Decodex also leads on update cadence (every 2 days vs weekly). On price, rating, review sentiment and ratings volume 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. SliceSum sells 1 one-off in-app purchase and Decodex sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SliceSum against 5.0 for Decodex. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

SliceSum ships an update weekly, Decodex every 2 days. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
SliceSum versus Decodex: the parameters behind the verdict, then further details
ParameterSliceSumDecodex
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings23 — better
Update frequencyWeeklyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size57 MB19 MB
Age rating4+4+
DeveloperDavid SmithAron Csatlos

Customer experience

SliceSum

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Decodex

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

SliceSum

One-time1
  • SliceSum Premium$3.99
4 purchases

Decodex

One-time4
  • Extra Hints - Small Pack$0.99
  • Extra Hints - Big Pack$1.99
  • Decodex Premium$2.99
Show 1 more
  • Extra Hints - Ultimate Pack$4.99

Questions

Is SliceSum free?
SliceSum is free to download, with in-app purchases available.
Is Decodex free?
Decodex is free to download, with in-app purchases available.
Which has better reviews, SliceSum or Decodex?
SliceSum and Decodex are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do SliceSum or Decodex have ads?
SliceSum shows ads; Decodex does not.
Which is updated more often, SliceSum or Decodex?
SliceSum ships an update weekly, and Decodex every 2 days. Most recently, SliceSum was updated on October 24, 2026 and Decodex on October 24, 2026.

Other comparisons