Runstamp vs SUNDAY GRIND
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Runstamp
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RUNSTAMP turns your running records into polished images made for sharing. Choose a photo, add your distance and time, and create a clean 9:16 running stamp in seconds. Pick from multiple templates, adjust the placement and size, then save or share your finished image. Key features • Create running stamps with distance, time, and workout details • Export in a story-friendly 9:16 format • Choose from a range of photo and graphic templates • Adjust stamp position, size, text, and accent colors • Browse saved creations and filter them by date • Import supported workouts from Apple Health with your permission Make every run worth remembering—and ready to share—with RUNSTAMP. The background photos shown in App Store screenshots are AI-generated examples. Running data is fictional and provided only to demonstrate app features.
SUNDAY GRIND
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For members of SUNDAY GRIND to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.
Screenshots
Verdict
The clearest difference is ads: SUNDAY GRIND at none against Runstamp's shown. Runstamp's advantage is update cadence (every 4 days vs every 9 days). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Runstamp ships an update every 4 days, SUNDAY GRIND every 9 days. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.
| Parameter | Runstamp | SUNDAY GRIND |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 9 days |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15 |
| Further details — not scored | ||
| Size | 72 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | GUNHO KIM | PushPress, Inc. |
In-app purchases
Runstamp
No in-app purchases
SUNDAY GRIND
No in-app purchases
