When vs SD Backup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
When
Never forget important dates again with this simple event tracking tool. Easily add and customize upcoming events like birthdays and anniversaries to see them all at a glance. Stay organized and ensure you never miss a moment that matters.
- Track birthdays and anniversaries
- Countdown to concerts and vacations
- Simple event adding
- Customizable with emojis
- Clear event overview
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Always forget to send that birthday card on time? Me too. With When, you'll never forget an important date again. Keep track of all the moments that matter to you, from birthdays and anniversaries to concerts, vacations, and everything in between. Designed with simplicity in mind, When makes it easy to see all your upcoming events at a glance. Quickly add new events, customize with a lil emoji, and voila! You'll never miss a thing.
SD Backup
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Back up photos and files directly to storage you control. SD Backup copies selected items from your iPhone, an external drive, or another folder to an SFTP server or a destination in the Files app. YOUR STORAGE, YOUR CHOICE • Connect to an SFTP server or NAS with SFTP enabled • Copy to a folder available through the Files app • Select photos or work with folders from external storage CLEAR TRANSFER STATUS • Review items before starting • Follow preparation and upload progress • See completed, resumable, and attention-required states • Confirm an SFTP server's host-key fingerprint when its identity changes PRIVACY BY DESIGN • No developer-operated cloud storage • No account required • No advertising or tracking • SFTP passwords are stored in the Apple Keychain • Files transfer directly between the locations you select SD Backup is made for personal servers, home NAS devices, and private storage workflows.
Screenshots
Verdict
The clearest difference is iOS requirement: When at 16.0 against SD Backup's 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.
| Parameter | When | SD Backup |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Clark Dinnison | 小祯 汪 |
In-app purchases
When
No in-app purchases
SD Backup
No in-app purchases









