Avoid 369 vs Prison Ferry
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Avoid 369
A brain-training puzzle game where players must avoid numbers that are multiples of three or contain the digits 3, 6, or 9. It challenges logical thinking and quick decision-making. This game is designed to sharpen your mind.
- Avoid multiples of 3
- Avoid numbers with 3, 6, or 9
- Brain training
- 3D puzzle gameplay
- Logical thinking challenge
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Avoid 369 is a brain game. To be precise, it is a game of avoiding multiples of 3 and numbers including 3, 6, and 9. Now is the time to use your brain.
Prison Ferry
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You're the escort: ferry prisoners across the river. But if the guards are outnumbered, they escape! Load officers and prisoners into the boat and get everyone to the far bank without losing a single one. [One simple rule] On a bank or in the boat, prisoners escape if they outnumber the guards. Leave prisoners with no guard, and they escape too. [Plan your moves on a river island] Leave people on an island mid-river. The boat can't go straight across; it stops at the island on the way. But the island needs guards too. Who stays where? [New helpers, tougher prisoners] - Boss: needs two guards alone - Police dog: guards, but can't row - Chief: guards two prisoners alone - Cuffed pair: chained together, takes two seats [120 levels, 3 stars for the shortest route] Every level is solvable. Cross in the fewest trips to earn 3 stars. Stuck? Watch a short video to see your next move (no video with Remove Ads). Undo before anyone escapes; restart any time. The puzzles play offline (hint videos need a connection). Contains ads. The in-app purchase Remove Ads turns off full-screen ads and lets you use hints without videos.
Screenshots
Verdict
The clearest difference is ads: Avoid 369 at none against Prison Ferry's shown. Avoid 369 also leads on iOS requirement (12.0 vs 15.0). Prison Ferry's advantage is update cadence (every 6 days vs monthly). On price, in-app purchases 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
Both are free to download. Avoid 369 sells 1 one-off in-app purchase and Prison Ferry sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Avoid 369 ships an update monthly, Prison Ferry every 6 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.
| Parameter | Avoid 369 | Prison Ferry |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (39 ratings) — better | — |
| Number of ratings | 39 — better | — |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 61 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | IK SEONG PARK | Hayato Namiki |
In-app purchases
Avoid 369
- No ads$2.99
Prison Ferry
- Remove Ads$1.99









