Only One vs MegaSmol
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Only One
This is a minimalist logic puzzle game where each level requires you to find a unique solution related to the number one. Explore diverse puzzles and receive hints if you get stuck for over 45 seconds.
- Minimalist logic puzzles
- Unique solutions per level
- Theme based on the number one
- Variety of fun puzzles
- In-game hints after 45 seconds
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Let there be one! Only One is a minimal logic puzzle game where each level has it's own logic to be solved. Every level's solution has to do with something related to the number 1. One color? One piece? or even the number one itself. Just let it be one. Explore a variety of fun puzzles. And if in any case you get stuck on a level after 45 seconds a hint icon would be available to provide you with some help. Can you make it Only One?
MegaSmol
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Hold to GROW. Release to SHRINK. That’s it — that’s the game. Thread your character through pits and bars as the world speeds up. Every obstacle is a split-second choice: big or small? And when you die — and you will — the game has something to say about it. Personally. — One thumb. Instantly playable, brutally hard to master. — 10 worlds to unlock by distance, from the Meadow to the Moon, Mars and beyond. — Living backgrounds: butterflies, passing rockets, drifting comets and underwater creatures. — Four shapes. Four character families. Wildling Squares, Arctic Circles, Ocean Triangles and Earth Diamonds. — Become a polar bear, shark, armadillo, cosmic traveller and more. Each purchased skin unlocks its matching character across every shape. — Earn special world skins by reaching new distances. — Leave your mark with swirling leaves, sparkling stars, glowing embers and shimmering moon dust. — Mix your look with hats and shades. — Your best run is planted in the world as a flag. Run past it. — A lifetime death counter. Every attempt counts. — DARE A MATE: share your result and challenge a friend. — Weekly and all-time leaderboards. A fresh race every Monday. — Reach 5,000m. We’ll be impressed. Free to play with ads. Watch an optional rewarded ad for another chance. A one-time Remove Ads purchase removes interstitial ads and includes one free continue per run. How far can you actually go?
Screenshots
Verdict
The clearest difference is price: MegaSmol at Free against Only One's $0.99. MegaSmol also leads on update cadence (every 9 days vs every 39 months). Only One's advantage is ads (none vs shown). On 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
MegaSmol is free to download; Only One costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Only One ships an update every 39 months, MegaSmol every 9 days. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.
| Parameter | Only One | MegaSmol |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 39 months | Every 9 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 65 MB | 31 MB |
| Age rating | 4+ | 9+ |
| Developer | Kofi Austin | Hardeep Dhillon |
In-app purchases
Only One
No in-app purchases
MegaSmol
No in-app purchases
