Egern vs Idum Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Egern
This app is a powerful network analysis tool for proxying, intercepting, and modifying network traffic. It offers comprehensive recording of various protocols and supports extensive rule types for flexible traffic management. Users can decrypt HTTPS, rewrite URLs and headers, and utilize JavaScript for custom operations.
- Network traffic recording (TCP, UDP, DNS, HTTP)
- Extensive rule types for traffic control
- Multiple proxy protocol support
- HTTPS traffic decryption
- URL and header rewriting
- JavaScript for custom operations
- iCloud configuration sync
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Egern is a feature-rich and powerful networking tool, specifically designed for proxying, intercepting, and modifying network traffic. Key features include: · Comprehensive recording of TCP, UDP, DNS, and HTTP network traffic. · Support for a wide range of rule types: domain, domain keywords, domain suffix, domain regular expressions, domain wildcard, geo-location, IPv4/IPv6 CIDR, URL regular expressions, logical, protocol, user-agent, rule sets, and default rules. · Flexible policy group options: selection, automatic testing, fallback, load balancing, and external policies. · Support for multiple proxy protocols: HTTP, SOCKS5, Shadowsocks, Trojan, Hysteria2, TUIC, Vless, and Vmess. · Effortlessly decrypt HTTPS traffic using Man-in-the-Middle attack techniques. · URL rewriting capabilities, allowing you to freely customize network requests. · Highly customizable request and response header rewriting functionality. · Versatile request and response content rewriting abilities. · Utilize JavaScript to provide customized operations on request and response data. · Support for local HTTP proxy server and local SOCKS5 proxy server to meet various networking needs. · DNS forwarding rules can proxy traffic to servers that support DoH, DoT, and DoQ protocols. · Sync configuration information across devices with iCloud, ensuring consistent network settings anywhere, anytime. As your ultimate network management tool, Egern helps you easily navigate various network environments and achieve efficient network control and debugging. Whether you're a network security expert, developer, or simply interested in network management, Egern will become an indispensable tool. Experience the powerful features of Egern and create your own exclusive networking environment today! Twitter: https://twitter.com/byteallen
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 update cadence: Idum Authenticator at every 2 days against Egern's every 2 weeks. Egern's advantage is device support (3 vs 1) and iOS requirement (16 vs 18.0). On price, ads and in-app purchases 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. Egern sells 1 one-off in-app purchase and Idum Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Egern ships an update every 2 weeks, Idum Authenticator every 2 days. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.
| Parameter | Egern | Idum Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (79 ratings) — better | — |
| Positive reviews | 56.8% of reviews | — |
| Number of ratings | 79 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 16 — better | 18.0 |
| Further details — not scored | ||
| Size | 49 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Byte Crossing | IDUM |
In-app purchases
Egern
- Unlock Pro$5.99
Idum Authenticator
- Idum Authenticator Pro Weekly$3.997 Days
- Idum Authenticator Pro Yearly$29.991 Year
- Idum Authenticator Lifetime$69.00









