Comparison

Bubbles vs Runner Beasts

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bubbles

Features
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What if your steps kept a tiny fish alive? Bubbles is a pet fish powered by your real walks. Every step feeds it, cheers it up, and unlocks new worlds. Bubbles isn't just an app. It's a tiny companion who needs you. Every step you take in the real world powers Bubbles, keeps the water glowing, and helps your fish thrive. Move more, and Bubbles lights up. Slow down, and Bubbles will miss you. Caring for Bubbles is simple and joyful: - Feed your fish fresh food every day - Keep the water crystal clear to swim in - Watch Bubbles react to your real-world movement - Build a caring streak you'll want to protect - Earn achievements as your bond grows - Unlock beautiful new worlds to explore together Bubbles turns walking into something you actually look forward to. No pressure, no guilt, no complicated charts. Just a sweet little fish who's happier every time you move. Your steps come from Apple Health and stay private. Meet your pet fish worth walking for. Terms of Use (EULA): https://bubbles.fit/legal/terms Privacy Policy: https://bubbles.fit/legal/privacy

About

Runner Beasts

Features
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You are not the player. You are the trainer. RunnerQuest is a pixel-art companion RPG that lives on your wrist. There is no "start workout" button: the app reads your step cadence and works out on its own whether you are standing still, walking, or running — and your buddy does exactly what you are doing. You walk, it strides across the grass. You pick up the pace, so does it. NO START BUTTON — YOUR DAY IS THE TRAINING The walk to the station, the trip to the shops, the stairs, and the proper run at the weekend all count. Steps become experience for your buddy, and the same number of steps is worth noticeably more when you take them at a running cadence. Raise your wrist and the reward is already sitting there. You never have to do anything extra for the game. STAMINA THAT DRAINS — AND COMES BACK Your buddy has a stamina bar. Both walking and running spend it — running much faster — and there is a daily limit on how much a single day can cost, so being more active is never punished. Stamina comes back through rest: every new day restores some, and how well you slept last night decides how much more. Sleep well and three hearts are waiting for you in the morning, bar full again. Disappear for a few days and your buddy gets weaker — but never down to nothing. It is just waiting for you to come back. RUNNER BEASTS YOU MEET ALONG THE WAY Cover enough ground and a wild runner beast falls into step beside you, announced with a tap and a chime so you don't have to watch the screen. Take up its challenge, or keep exploring — turning it down costs you nothing, and it will turn up again later. If you do accept, all you have to do is hold your speed in the range it likes for long enough. Manage that and it approves of you, and joins your field guide. Run out of time instead? "Let's run together again" — nothing extra is deducted, and you will meet again. FOUR RUNNER BEASTS AT LAUNCH · Trekhorn — Endurance. "Just keep walking." Walking alone is enough; the easiest company to keep. · Restshell — Recovery. "Slowly, together." Only turns up on gentle walks, and accepting its challenge costs no stamina. · Pacehound — Endurance, advanced. "Match my pace." Won't show itself until you have put in real distance. · Flashstride — Sprint. "Show me your burst." Only interested in the fifteen seconds you give everything. FEED IT, PET IT Tap your buddy while you are standing still to feed it, pet it, or let it rest. The bond you build that day makes the next challenge a little more forgiving. BUILT FOR A SMALL SCREEN, OUTDOORS Two pixel palettes — 4-tone and high contrast — so it stays readable in bright sun. Almost every state is expressed graphically: animation, emote bubbles, hearts, pixel bars, with only the numbers that earn their place. A How to Play page in Settings lays out the whole loop on one screen. VoiceOver narration and Reduce Motion are supported, sound and haptics can each be switched off, and the app is fully localised in English, Japanese and Traditional Chinese. YOUR DATA NEVER LEAVES THE WATCH This app has no networking code of any kind. No account, no analytics, no ads, no tracking. Health data is turned into game numbers on the device itself — the developer cannot see it, and there is nowhere for it to be sent. COMPLETELY FREE No in-app purchases, no subscription, no ads, no in-game currency. Version 1.0 is the whole game. Motion & Fitness and Health permissions are required. On days with no sleep data your buddy still gets its fixed daily rest; sleep data only decides how much further it recovers — the app will never guess how you slept. This app runs on Apple Watch only (watchOS 11.0 or later). There is no iPhone screen. Privacy Policy: https://chshlingit.github.io/runnerquest-site/en/privacy/ Support: https://chshlingit.github.io/runnerquest-site/en/support/

Screenshots

Bubbles4 screens

Verdict

The call

The clearest difference is in-app purchases: Runner Beasts at none against Bubbles's 2. Runner Beasts also leads on iOS requirement (16.0 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bubbles sells 2 in-app purchases, starting at $4.99 per month. Runner Beasts asks for nothing beyond the download.

Scorecard2 real differences · 4 level
Bubbles versus Runner Beasts: the parameters behind the verdict, then further details
ParameterBubblesRunner Beasts
PriceFreeFree
Update frequencyEvery 8 days—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.016.0 — better
Further details — not scored
Size24 MB2 MB
Age rating12+4+
DeveloperSunil PMVincent Lin

In-app purchases

2 purchases

Bubbles

Subscriptions2
  • Monthly Premium3 Days trial$4.991 Month
  • Yearly Premium3 Days trial$29.991 Year
None

Runner Beasts

No in-app purchases

Questions

Is Bubbles free?
Bubbles is free to download, with in-app purchases available.
Is Runner Beasts free?
Runner Beasts is free to download, with no in-app purchases.
Do Bubbles or Runner Beasts have ads?
Neither Bubbles nor Runner Beasts shows ads.

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