Comparison

Voltup vs Sign In Authenticator

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

Head to head
About

Voltup

This platform simplifies electric vehicle charging by allowing owners to find, charge, and pay for electricity at various locations. It caters to individual EV owners, fleet operators, and taxi services, offering convenient payment options.

Highlights
  • Find EV charging stations
  • Charge electric vehicles
  • Make online payments
  • Supports home charging
  • Supports public charging
  • Fleet and taxi owner friendly
Features
Read full description

VoltUp is a one stop electric vehicle charging station platform. VoltUp helps EV owners, EV fleet owners, and EV taxi owners to charge and make online payments in a few clicks at home, residential and public spaces.

About

Sign In Authenticator

Features
Read full description

Protect your accounts with a second step at sign-in. When a website asks for an authenticator code, Sign In keeps it ready. Add your account once, then open the app for a fresh code whenever you sign in. No Sign In account or registration required. EASY TO SET UP Turn on two-factor authentication in a service's security settings, choose its authenticator-app option, and scan the QR code with Sign In. You can also enter a setup key manually. YOUR CODES, READY WHEN YOU NEED THEM Find your accounts in one clear list and tap to copy a code. Codes are generated on your device and work without an internet connection after setup. Compatible with services that support standard time-based one-time passwords (TOTP). IN SYNC ON IPHONE AND IPAD With Sign In Pro, use iCloud Keychain backup and sync to keep your accounts available across your iPhone and iPad. Both devices must use the same Apple Account with iCloud Keychain enabled. PROTECTION YOU CONTROL Store your setup keys in Apple Keychain. With Sign In Pro, lock the app with Face ID, Touch ID, or your device passcode, depending on your device. Import supported authenticator backups or export a recovery copy. Manual text and QR exports are not encrypted, so store them securely. START WITH TWO ACCOUNTS FREE The free plan includes up to two accounts and import/export. Sign In Pro adds unlimited accounts, app lock, and iCloud backup and sync. If your subscription ends, existing accounts and codes remain accessible, and app lock or backup you already turned on stays on; adding accounts beyond the free allowance, or turning those features on again, requires Pro. Sign In Pro is available as a weekly or yearly auto-renewable subscription. Prices and any available introductory offers are shown before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in your Apple Account subscription settings. Restore Purchases is available in the app. Privacy Policy: https://www.usesignin.com/privacy.html Terms of Use: https://www.usesignin.com/terms.html Support: support@usesignin.com

Screenshots

Voltup3 screens
Sign In Authenticator3 screens

Verdict

The call

The clearest difference is in-app purchases: Voltup at none against Sign In Authenticator's 2. Voltup also leads on iOS requirement (15.1 vs 18.0). Sign In Authenticator's advantage is update cadence (weekly vs every 3 months). On price, rating, ratings volume and ads 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. Sign In Authenticator sells 2 in-app purchases, starting at $6.99 per 7 days. Voltup asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Voltup against 5.0 for Sign In Authenticator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Voltup ships an update every 3 months, Sign In Authenticator weekly. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.

Scorecard3 real differences · 6 level
Voltup versus Sign In Authenticator: the parameters behind the verdict, then further details
ParameterVoltupSign In Authenticator
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better18.0
Further details — not scored
Size75 MB27 MB
Age rating4+4+
DeveloperYellow Haze Pvt. Ltd.GetProAct Inc.

In-app purchases

None

Voltup

No in-app purchases

2 purchases

Sign In Authenticator

Subscriptions2
  • Sign In Pro Weekly3 Days trial$6.997 Days
  • Sign In Pro Yearly$49.991 Year

Questions

Is Voltup free?
Voltup is free to download, with no in-app purchases.
Is Sign In Authenticator free?
Sign In Authenticator is free to download, with in-app purchases available.
Which has better reviews, Voltup or Sign In Authenticator?
Voltup and Sign In Authenticator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Voltup or Sign In Authenticator have ads?
Neither Voltup nor Sign In Authenticator shows ads.
Which is updated more often, Voltup or Sign In Authenticator?
Voltup ships an update every 3 months, and Sign In Authenticator weekly. Most recently, Voltup was updated on November 8, 2026 and Sign In Authenticator on November 12, 2026.

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