Memory Trace vs Shadow Digits
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Memory Trace
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Train Your Brain with Memory Trace Memory Trace is a sleek and addictive memory card game that combines classic matching mechanics with progressive difficulty and thrilling time pressure. Perfect for a quick mental workout or a relaxing puzzle session. Standard Mode – Take your time. No clock, no pressure. Just pure memory training as you progress through levels and rack up points. Timed Mode – Feel the heat! A dynamic progress bar counts down. Match cards before time runs out. Every second matters.
Shadow Digits
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The system randomly generates a number. Players input a number to make a guess, and the system provides real-time feedback: "Too high", "Too low", or "Correct guess". There is no limit on the number of attempts. The goal is to find the answer in the fewest tries, which is a fun way to exercise your reasoning skills
Screenshots
Verdict
The clearest difference is ads: Memory Trace at none against Shadow Digits's shown. Shadow Digits's advantage is update cadence (every 4 days vs every 9 days). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
Memory Trace ships an update every 9 days, Shadow Digits every 4 days. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.
| Parameter | Memory Trace | Shadow Digits |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 11 MB |
| Age rating | 17+ | 17+ |
| Developer | Art Canales | Stephen Pierce |
In-app purchases
Memory Trace
No in-app purchases
Shadow Digits
No in-app purchases
