Comparison

Backup Contacts vs Open Sesme

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

# 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.

About

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.

Highlights
  • 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
Features
Read full description

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

Backup Contacts4 screens
Open Sesme4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Backup Contacts ships an update every 10 days, Open Sesme fortnightly. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Backup Contacts versus Open Sesme: the parameters behind the verdict, then further details
ParameterBackup ContactsOpen Sesme
PriceFreeFree
Rating4.3 (6 ratings)5.0 (4 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings6 — better4
Update frequencyEvery 10 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size17 MB58 MB
Age rating4+4+
DeveloperOptimize ITSound Genetics, Inc

Customer experience

Backup Contacts

All ratings6 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Open Sesme

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

9 purchases

Backup Contacts

Subscriptions9
  • Weekly$7.997 Days
  • Weekly Pro7 Days trial$9.997 Days
  • Weekly VIP3 Days trial$9.997 Days
Show 6 more
  • 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
None

Open Sesme

No in-app purchases

Questions

Is Backup Contacts free?
Backup Contacts is free to download, with in-app purchases available.
Is Open Sesme free?
Open Sesme is free to download, with no in-app purchases.
Which has better reviews, Backup Contacts or Open Sesme?
Open Sesme is rated higher. Backup Contacts averages 4.3 out of 5 from 6 ratings, while Open Sesme averages 5.0 from 4 ratings.
Do Backup Contacts or Open Sesme have ads?
Neither Backup Contacts nor Open Sesme shows ads.
Which is updated more often, Backup Contacts or Open Sesme?
Backup Contacts ships an update every 10 days, and Open Sesme fortnightly. Most recently, Backup Contacts was updated on October 24, 2026 and Open Sesme on October 24, 2026.

Other comparisons