String.io vs Flip Rock
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
String.io
Capture territory by enclosing areas with your string. Attack opponents by hitting their tails. Unlock avatars and enjoy minimalist graphics in this competitive .io game.
- Enclose areas to capture territory
- Attack players by hitting tails
- Unlock over 30 avatars
- Minimalist graphics
- Multiple control methods
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String.io is a brand new IO game! The goal is pretty simple. Just capture as much territory as possible! Take care! Your enemies are extremely smart! HOW TO PLAY ● Enclose an area with your string to capture new land. ● Attack other players by hitting their tails. FEATURES ● Over 30 colorful avatar to unlock ● Amazing minimalism graphics ● Up to 4 control methods to choose ● Online PVP coming soon Join this game and beat people all around the world! STRING.IO UNLIMITED SUBSCRIPTION: - The subscriptions are $7.99 weekly with 3 days FREE trial, $19.99 monthly, $99.99 annually. - During your subscriptions, you can get 10000 coins per day and double coins. - You can skip missions for the duration of your subscription. - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at leat 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen subscription. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - No cancelation of the current subscription is allowed during active subscription period. - You can read privacy policy at http://www.metajoy.io/privacy.html and terms of use at http://www.metajoy.io/privacy.html - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that content. *Prices are equal to the value that "Apple's App Store Matrix" determines is the equivalent of the subscription price in$USD. Terms of Service http://www.metajoy.io/privacy.html Privacy Policy http://www.metajoy.io/privacy.html Questions? Ask: help@metajoy.io
Flip Rock
Discover hidden creatures and fossils by flipping a virtual rock each day. Build a collection in your field guide with real facts about each find. Enjoy a calm, curiosity-driven experience without timers or pressure.
- Daily rock flip
- Discover critters and fossils
- Build a field guide
- Learn real facts
- Vintage pixel art
- No timers or pressure
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Remember turning over a rock just to see what was underneath? Flip Rock brings that little thrill to your pocket, one rock a day. Each day you get a single flip. Tap the rock, lift it, and see what you uncovered. It might be a beetle, a snail, a glowing firefly, an ancient fossil, or a plain pebble. Once in a while it's nothing but damp dirt. Whatever turns up goes into your field guide, and every entry teaches you something true about the real creature behind it. That's the whole game. No countdown timers, no streaks to keep alive, no pressure to come back. Just one small, calm moment of curiosity a day, and a collection that fills in over weeks and months. WHAT YOU'LL DISCOVER • 52 specimens to find: bugs, critters, fossils, rocks, and a few surprises • Real species with real names, like the monarch butterfly, woolly bear, luna moth, and lady beetle • A true, kid-friendly fact about each one: where it lives, what it does, why it matters • Common finds most days, with rare and very rare discoveries to chase over time A DAILY RITUAL, NOT A TIME SINK • One flip per day. Come back tomorrow for the next. • It takes a few seconds. The fun is the surprise and watching the guide fill up. • Warm pixel art in a vintage natural-history style GENTLE BY DESIGN • Made for curious kids and the grown-ups flipping along with them • No leaderboards or social pressure, only a quiet daily discovery • You, a rock, and whatever is hiding under it MORE TO COME • The field guide will keep growing, with new creatures added in future updates • Whatever you find now stays in your collection as it expands Turn one over. You never know what's under there.
Screenshots
Verdict
The clearest difference is review sentiment: Flip Rock at 100% against String.io's 58%. Flip Rock also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 4). String.io's advantage is ratings volume (1.8K vs 5) and device support (3 vs 1). On price 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. String.io sells 4 in-app purchases, starting at $7.99 per 7 days. Flip Rock asks for nothing beyond the download.
Flip Rock holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: String.io has 1.8K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 58% of String.io's written reviews are positive against 100% of Flip Rock's.
| Parameter | String.io | Flip Rock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.8K ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 58.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.8K — better | 5 |
| Update frequency | Every 3 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 339 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Metajoy | Chip Keyes |
Customer experience
String.io
Flip Rock
Bugs and requests
String.io
Reported bugs
3 issues- Game freezes at 24% loading
- Missions not registering as completed
- Inconsistent collision detection
Requested features
4 requests- Online multiplayer mode
- Ability to play with friends
- More levels and game modes
- Improved mission system
Flip Rock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
String.io
- Subscribe For 1 Week3 Days trial$7.997 Days
- Subscribe For 1 Month$19.991 Month
- Subscribe For 1 Year$99.991 Year
- Remove Ads$1.99
Flip Rock
No in-app purchases









