PrefixPlus vs AirCopy.app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrefixPlus
Easily add international or custom prefixes to all your phone numbers in contacts simultaneously. This utility helps manage multiple contact entries for different calling regions without overwriting existing numbers. Ensure you back up your contacts before use.
- Add prefixes to multiple contacts at once
- Does not overwrite existing numbers
- Customizable prefix numbers
- Customizable label for new entries
- Supports iCloud and Gmail synchronized contacts
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PrefixPlus allows you to add the prefix number to phone numbers in Contacts at once. Phone numbers with the prefix number will not be replaced but added to contacts. For example, if you set the number "+81" and the label "Call(JP)", contacts will be updated as follows. [Before update] Home: 03-1234-5678 Mobile: 090-1234-5678 [After update] Home: 03-1234-5678 Mobile: 090-1234-5678 Call(JP) Home: +81-3-1234-5678 Call(JP) Mobile: +81-90-1234-5678 (Caution) Be sure to back up contacts as security against accidents. For example, if you back up to iCloud, you can restore contacts at some point in the past. Please note that you can add prefix numbers to contacts synchronized with local, iCloud, Gmail only.
AirCopy.app
Easily transfer files between your devices without needing Wi-Fi or creating hotspots. Simply scan a QR code on the target device to initiate the transfer. Supports mobile data for transfers anywhere.
- QR code scanning for transfer initiation
- Cross-device file transfer
- No Wi-Fi or hotspot required
- Mobile data transfer support
- No login or additional settings needed
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AirCopy.app offers the easiest way how to transfer files from your device to a computer or another mobile device. It is free and it doesn't require any login or additional settings. Just scan a QR code on the target device with your AirCopy.app and that's all! The target device can be the webpage https://AirCopy.app on your computer or another device running AirCopy.app. AirCopy.app supports transfer over mobile data so you don't need any WiFi connection and you don't have to create a WiFi hotspot. It is extremely easy!
Screenshots
Verdict
The clearest difference is update cadence: AirCopy.app at every 2 weeks against PrefixPlus's every 2 months. AirCopy.app also leads on rating (5.0 vs 4.7). PrefixPlus's advantage is ratings volume (1.1K vs 1) and review sentiment (72% vs 50%). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
AirCopy.app holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: PrefixPlus has 1.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 72% of PrefixPlus's written reviews are positive against 50% of AirCopy.app's, so the app with the better star average is not the one people write more warmly about.
PrefixPlus ships an update every 2 months, AirCopy.app every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | PrefixPlus | AirCopy.app |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.1K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.8% of reviews — better | 50.0% of reviews |
| Number of ratings | 1.1K — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | yasuhiko nagahara | Jan Rohan |
Customer experience
PrefixPlus
AirCopy.app
Bugs and requests
PrefixPlus
Reported bugs
3 issues- Crashes on iOS 13.3
- Duplicate contact entries created
- Prefix not applied to all contacts
Requested features
3 requests- Option to add space between prefix and number
- Support for local/offline contacts
- Ability to selectively update contacts
AirCopy.app
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PrefixPlus
No in-app purchases
AirCopy.app
No in-app purchases
