Backup Contacts vs Open Sesme
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Backup Contacts
Easily back up, restore, and export your contacts in VCF or CSV formats. Offers fast performance, sorting options, and a simple interface for managing your address book.
- Lightning-fast backup and restore
- Export contacts as VCF (vCard)
- Export contacts as CSV (Excel)
- Delete all contacts easily
- Sort contacts by name or creation date
- Reliable for large address books
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# BACK UP YOUR CONTACTS, RESTORE THEM ANYWHERE Backup Contacts saves your address book to your device in seconds and puts it back whenever you need it. Export to vCard or CSV, keep as many backups as you like, and restore any one of them. # FAST BACKUP AND RESTORE Back up thousands of contacts in seconds. Every backup is stored on your device and stays available until you delete it, so you can keep a history rather than a single snapshot. # RESTORE ANY BACKUP Open a backup to see what it holds, then restore it. Contacts are added back to your address book exactly as they were saved. # EXPORT AS VCF OR CSV Share a backup as a vCard (VCF) file that any phone can read, or as a CSV file that opens in any spreadsheet app. # SORT THE WAY YOU WORK Order contacts by first name, last name, or the date they were added. Sorting by date is the quickest way to see what you saved recently. # DELETE WITH CARE Remove selected contacts or clear the whole address book, always behind a confirmation. Back up first and nothing is lost. # SUBSCRIPTIONS AND AUTOMATIC RENEWAL - Your subscription includes access to the features listed above. - Payment will be charged to your Apple ID Account at confirmation of purchase. - Subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. - Your account will be charged for renewal within 24 hours prior to the end of your selected subscription period. - Subscriptions can be managed and auto-renewal turned off in your App Store Account Settings. # LEGAL Terms of Service: https://cooptimizeit.com/terms-of-service Privacy Policy: https://cooptimizeit.com/privacy-policy # SUPPORT Contact us at info@cooptimizeit.com. We reply within 48 hours.
Open Sesme
This app provides multi-factor authentication using a unique voice signature to protect your accounts from unauthorized access. It generates passcodes for 2FA prompts and supports various web applications and services.
- Multi-factor authentication (2FA)
- Unique Voice Signature for verification
- Account protection from human/AI actors
- Passcode generation for 2FA prompts
- Support for web applications with 2FA
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Open Sesme is the new industry standard for multi-factor authentication (2FA). Open Sesme quickly presents passcodes for your 2FA prompt with your Unique Voice Signature. Open Sesme also protects your accounts from being stolen and hacked by malicious Human/AI Actors. You mint a Unique Voice Signature when creating your account. Open Sesme then protects access to your apps with our patented technology. We are an Acoustical Engineering Company. We design and develop products for both speech and non-speech sounds utilizing our patented proprietary sound algorithms. You can also use Open Sesme for web applications that support the use of passcodes & 2FA. Chromebook access and other services are being developed via plugin. Customers please note: Open Sesme needs to be activated and linked to an account before it will work. You may add any third-party accounts that support 6-digit 2FA codes.
Screenshots
Verdict
The clearest difference is rating: Open Sesme at 5.0 against Backup Contacts's 4.3. Open Sesme also leads on in-app purchases (none vs 10). On price, review sentiment, ratings volume and update cadence 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. Backup Contacts sells 9 in-app purchases, starting at $7.99 per 7 days. Open Sesme asks for nothing beyond the download.
Open Sesme holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Backup Contacts ships an update every 10 days, Open Sesme fortnightly. Both last shipped on October 24, 2026.
| Parameter | Backup Contacts | Open Sesme |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 — better | 4 |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 17 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Optimize IT | Sound Genetics, Inc |
Customer experience
Backup Contacts
Open Sesme
In-app purchases
Backup Contacts
- Weekly$7.997 Days
- Weekly Pro7 Days trial$9.997 Days
- Weekly VIP3 Days trial$9.997 Days
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- Monthly$17.991 Month
- Monthly Pro7 Days trial$19.991 Month
- Annual VIP$24.991 Year
- Annual$24.991 Year
- Annual VIP3 Days trial2 variants$29.991 Year
- Annual Pro7 Days trial$29.991 Year
Open Sesme
No in-app purchases
Questions
Is Backup Contacts free?
Is Open Sesme free?
Which has better reviews, Backup Contacts or Open Sesme?
Do Backup Contacts or Open Sesme have ads?
Which is updated more often, Backup Contacts or Open Sesme?
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