Greyp vs OpenSwim
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Greyp
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Get the most from your Greyp bike by connect it with your phone and use it as an extended dashboard or as the bike's remote. Switch between two modes: Dashboard & Remote. 1) DASHBOARD MODE Use your phone as an onboard computer when riding. Once paired and mounted, you will be able to check your phone for: * Bike status * Current speed * Elapsed time * State of charge * Battery level * Estimated range * Assistance level Using the handlebar controls, switch between different additional functions: * Ride Session β relevant bike stats from your current riding session * Navigation β input your destination and follow the turn-by-turn navigation * Camera - switch between front and rear cameras and record videos ** NEW: RETRO VIDEO - with a press of a button, go 30β back in time and check your front camera footage 2) REMOTE MODE Control your bike remotely, check its current status or gain insight into the info your bike generated. It allows you to: * Check your bike's status * Look up the bike's last known position * Check the battery charge status * Set the maximum assistance level * Text the bike from your phone * Acquire a photo from the front or rear cameras * Watch recorded videos and/or images * Select, delete or save Retro Videos * See your notification list * Disable the bike remotely * Turn off the bike Software updates are free for all Greyp App users, so make sure you update your app regularly.
OpenSwim
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OpenSwim is your AI-powered open water swimming companion. Whether you're a skins swimmer braving the Atlantic, a wetsuit triathlete scouting your next crossing, or a beginner checking if conditions are safe. OpenSwim gives you everything you need before you hit the water. Real-time ocean conditions Get hyperlocal forecasts for your favourite beaches β wave height, swell period, water temperature, wind, UV, and current β all interpreted specifically for swimmers, not surfers or sailors. AI swim coach Ask anything about open water swimming. Get personalised coaching advice, safety guidance, cold water acclimatisation tips, and training plans built around ocean conditions. Epic Crossings Plan legendary open water routes with AI-generated course intelligence, marine activity reports, and safety scoring. Cold Water & Safety tools Pre-swim checklists, cold water immersion guides with duration ranges by experience level, and rip current awareness β built by swimmers, for swimmers. AI Vision Beach Analysis Upload a photo of any beach and get an instant AI safety briefing with hazard identification. Swim Logger & Analytics Log every ocean swim, track your progress, and review your history over time. OpenSwim is free to use.
Screenshots
Verdict
The clearest difference is iOS requirement: Greyp at 13.0 against OpenSwim's 15.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Greyp | OpenSwim |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 124 MB | 13 MB |
| Age rating | 4+ | 17+ |
| Developer | Porsche e-bike performance d.o.o. | Jaco Rossouw |
In-app purchases
Greyp
No in-app purchases
OpenSwim
No in-app purchases





