BioSap vs Grain Social
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BioSap
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BioSap - The social platform for our organization: for employees and external partners BioSap is the platform for communication within and outside your organization. Consisting of timelines, news feeds and chat features, similar to your private social media. All to provide you with a pleasant and familiar way of communicating with colleagues and partners. Share new knowledge, ideas and internal successes quickly and easily with the rest of your team, department or organization. Enrich messages with pictures, videos and emoticons. Simply keep track of new posts from your colleagues, organization and partners. Push-notifications will make you notice new coverage immediately. Convenient, especially if you do not work behind a desk. The benefits of BioSap - Communicate wherever you are - Information, documents and knowledge anytime, anywhere - Share ideas, have discussions and share successes - No business email needed - Learn from the knowledge and ideas within and outside your organization - Save time by reducing e-mail and find what you're looking for - All shared messages are secured - Important news will never be overlooked Feature list: - Timeline - Video - Groups - messages - News - Locking and unlocking posts - Who has read my post? - Sharing files - Integrations - Notifications
Grain Social
This photo-first social app allows users to post galleries with titles, descriptions, and locations, and share temporary 24-hour stories. It offers various feed options including following, curated, camera-based, and location-based browsing. Users can sign in with their existing Bluesky account.
- Photo galleries with titles and descriptions
- 24-hour disappearing stories
- Multiple feed options (following, curated, camera, location)
- Location-based browsing with maps
- Bluesky account integration
- Alt text for photos
- EXIF data preservation
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Grain is a photo-first social app. Post galleries, share 24-hour stories, and browse feeds by following, For You, camera, or location. Galleries One photo or a full set. Each gallery has a title, description, and location. Add alt text on individual photos. EXIF is read from the file and kept intact. Stories Share something in the moment. Stories disappear after 24 hours. Favorite and comment the same as on galleries. Feeds Pin the ones you want: following, For You, by camera body, or by location with a map. Mentions, hashtags, links @mention people, add #hashtags, paste links. All tappable. Sign in with your Bluesky account No new password. Your Bluesky handle and followers come with you. People who follow you on Bluesky can find you on Grain, and the people you already follow are here too. Don't have a Bluesky account? Make one at bsky.app, then sign in.
Screenshots
Verdict
The clearest difference is update cadence: Grain Social at every 2 days against BioSap's fortnightly. BioSap's advantage is iOS requirement (17.5 vs 26.0). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
BioSap ships an update fortnightly, Grain Social every 2 days. The most recent releases landed on September 3, 2026 and September 17, 2026 respectively.
| Parameter | BioSap | Grain Social |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 85 MB | 9 MB |
| Age rating | 17+ | 17+ |
| Developer | Biosystems SA | Chad Miller |
In-app purchases
BioSap
No in-app purchases
Grain Social
No in-app purchases








