Calculator Max vs Photo Margin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Max
This app offers a fast and efficient calculator for everyday calculations. It provides a VIP membership for continuous access without recurring subscriptions, with options to manage renewals through Apple ID settings.
- Fast calculations
- Scientific calculator functions
- VIP membership
- No recurring subscriptions
- Easy renewal management
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Calculator Max, calculate simple life. 【VIP Member 】 - Once purchased, there will be no subsequent costs. Continuous deduction without subscription. - Payment: After the user confirms the purchase and makes the payment, it is credited to the iTunes account. - Cancel Renewal: To cancel a subscription, manually turn off automatic renewal in iTunes/Apple ID Settings Management 24 hours before the current subscription expires. - Renewal: The Apple iTunes account will be charged within 24 hours before the expiration date, and the subscription period will be extended accordingly. - membership agreement: https://www.kdocs.cn/l/cbPOPTT96TZ3 - the terms of service: https://www.kdocs.cn/l/cg77rvmFKkiJ
Photo Margin
Organize your iPhone's photo library locally. Review and manage photos and videos in batches, separating new arrivals from older items. Protect, delete, or keep media with intuitive swipe gestures, all processed on your device.
- On-device processing
- Batch duplicate and similar photo comparison
- Swipe gestures for protect/delete/keep
- Sort large videos by file size
- Pause and resume analysis
- Local-first organization
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Photo Margin is a local-first photo library organizer for iPhone. Separate new arrivals from older items and review photos and videos in batches by type, month, date or album. Reviewed and protected items stay out of unreviewed lists. Results are candidates for your review; you always decide what to keep. Features: • On-device processing: no photos or videos are uploaded to the developer's servers • Compare duplicate and similar photos side by side, in batches of up to five groups • Swipe up to protect photos and videos; manage protection in Settings • Review older screenshots in batches and sort large videos by file size • Swipe left to set an item aside for deletion, right to keep it, or tap the buttons • Zoom photos, play videos and restore candidates in the pending deletion list • Pause and resume analysis, with clear iCloud and read-failure feedback • Confirm final deletion through iOS Free and Pro: • Free: unlimited scanning and keeping, plus 30 items per rolling 24 hours into the To delete list • 7-day free trial: you start it, it ends on its own; nothing is charged or renewed • Photo Margin Pro: unlimited review with a yearly subscription, or a one-time lifetime purchase • Subscriptions renew automatically through Apple and can be cancelled anytime in Settings → Apple Account → Subscriptions No account or registration is required. Photo Margin does not create a cloud photo library. You control access through the system Photos permission. If an asset is stored in iCloud, iOS may download it for display or playback. English and Simplified Chinese interfaces follow your device or app language. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://catteacher0515.github.io/privacy/en/
Screenshots
Verdict
The clearest difference is ads: Photo Margin at none against Calculator Max's shown. Photo Margin also leads on rating (5.0 vs 4.6) and update cadence (daily vs every 5 days). Calculator Max's advantage is ratings volume (15 vs 1) and device support (3 vs 1). On price, in-app purchases and monetization model 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. Calculator Max sells 1 one-off in-app purchase and Photo Margin sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Photo Margin holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calculator Max has 15 ratings behind it against 1, so its average is the more settled of the two.
Calculator Max ships an update every 5 days, Photo Margin daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Calculator Max | Photo Margin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Every 5 days | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 86 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Chengdu Cangmo Technology Co., Ltd | 博 刘 |
Customer experience
Calculator Max
Photo Margin
In-app purchases
Calculator Max
- Permanent purchase$7.99
Photo Margin
- Photo Margin Pro Monthly$1.991 Month
- Photo Margin Pro Yearly$4.991 Year
- Photo Margin Pro Quarterly$4.993 Months
- Photo Margin Pro Lifetime$9.99









