Battery Level vs Idum Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Battery Level
This app displays your device's current battery percentage and offers comprehensive system monitoring. Track CPU usage, RAM, network activity, and system uptime with detailed graphs and statistics.
- Battery percentage indicator
- CPU usage monitoring
- CPU activity graph
- System uptime tracking
- RAM monitor
- Network monitor
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• Battery percentage • CPU usage and live activity graph • RAM usage • Network monitor and data usage • System uptime tracking
Idum Authenticator
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Idum Authenticator keeps your two-factor codes private and locked behind Face ID. Lost your phone or upgrading to a new iPhone? Turn on iCloud Sync in Settings and your codes come back automatically—end-to-end encrypted via iCloud Keychain. Generate TOTP and HOTP codes for the sites and apps you already use. Scan a QR code or paste an otpauth:// URI. By default, secrets stay on this device only. When you enable iCloud Sync in the app AND iCloud Keychain in iOS Settings, your Spaces and OTP secrets are stored in iCloud Keychain (E2E encrypted, not iCloud Drive or CloudKit). No Idum account required. The free plan stores up to 4 accounts; Idum Authenticator Pro unlocks unlimited accounts. WHY IDUM AUTHENTICATOR • Optional iCloud Keychain sync—OFF by default; you control it • Unlock with Face ID or Touch ID, then a 6-digit PIN • TOTP and HOTP (SHA-1 / SHA-256 / SHA-512, 6–8 digits) • Scan setup QR codes with the camera, or import from Photos / Files • Copy a code with one tap • No Idum account, no analytics, no ads GET STARTED • Create a PIN on first launch • Tap Add account and scan your service's QR code • Codes refresh automatically; HOTP counters increment when you copy • Enable iCloud Sync in Settings if you want restore on a new device PRIVACY • Default is local-only (Keychain on this iPhone) • Optional iCloud Keychain sync (E2E encrypted, user must enable) • PIN and Face ID unlock never sync—always this device only • Camera is used only to scan setup QR codes • Face ID is used only to unlock the app SUBSCRIPTIONS Idum Authenticator Pro (unlimited accounts) is available as: • Weekly auto-renewable subscription — €4.99 per week • Yearly auto-renewable subscription — €32.99 per year • Lifetime unlock — €78, one-time (non-consumable) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in iPhone Settings → Apple ID → Subscriptions. Prices are for the France / Euro storefront; other regions may differ. Support: https://macapps.idum.app/support/ Privacy Policy: https://macapps.idum.app/apps-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Battery Level at none against Idum Authenticator's 3. Battery Level also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). Idum Authenticator's advantage is ads (none vs shown) and update cadence (every 2 days vs every 15 months). On price 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. Idum Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days. Battery Level asks for nothing beyond the download.
Battery Level ships an update every 15 months, Idum Authenticator every 2 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | Battery Level | Idum Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1K ratings) — better | — |
| Positive reviews | 62.1% of reviews | — |
| Number of ratings | 1K — better | — |
| Update frequency | Every 15 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenneth Kao | IDUM |
Bugs and requests
Battery Level
Reported bugs
2 issues- Inaccurate battery percentage
- Drains battery quickly
Requested features
6 requests- Add icon badge with battery percentage
- Widget
- Charging complete notification
- Battery statistics
- Customizable background color
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- Percentage display on top bar
Idum Authenticator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Battery Level
No in-app purchases
Idum Authenticator
- Idum Authenticator Pro Weekly$3.997 Days
- Idum Authenticator Pro Yearly$29.991 Year
- Idum Authenticator Lifetime$69.00
Questions
Is Battery Level free?
Is Idum Authenticator free?
Do Battery Level or Idum Authenticator have ads?
Which is updated more often, Battery Level or Idum Authenticator?
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