SUM vs Number Puzzle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
SUM
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SUM is a quiet puzzle game about seeing mathematical relationships. Move, compare and arrange mathematical pieces until the idea behind each puzzle becomes clear. There are no timers, scores, streaks or advertisements — only space to look, notice and understand. Explore the first two sets for free. Unlock Premium once to continue through the complete collection of puzzles and mathematical cards.
Number Puzzle
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A little inspiration, every day. NUMBER PUZZLE brings you 200 challenges involving numbers, patterns, logic, calculation and observation. Choose from four difficulty levels: EASY, NORMAL, EXPERT and GENIUS. Pick one of four answers, then discover the reasoning and rules after each correct answer. Explore number sequences, shapes, time, science, world knowledge and more. Write your calculations and ideas in the built-in handwritten memo while keeping the question in view. Expand, shrink or close the memo as you need. Your progress is saved automatically. Play a quick puzzle during a break or take your time with a tougher challenge. Can you solve all 200? Available in 10 languages. No account required. Contains ads.
Screenshots
Verdict
The clearest difference is in-app purchases: Number Puzzle at none against SUM's 1. SUM's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. SUM sells 1 one-off in-app purchase. Number Puzzle asks for nothing beyond the download.
SUM ships an update every 3 days, Number Puzzle every 2 days. Both last shipped on October 31, 2026.
| Parameter | SUM | Number Puzzle |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 110 MB | 104 MB |
| Age rating | +4 | 4+ |
| Developer | Alex van Rooijen | RESTPLACE, K.K. |
In-app purchases
SUM
- SUM Premium$3.99
Number Puzzle
No in-app purchases
