Comparison

M2M Recharge vs U

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

Head to head
About

M2M Recharge

This application allows customers to register their devices and access device information securely. Access is protected by a username and password system.

Highlights
  • Device registration
  • View device data
  • Username/password protection
  • Secure access
Features
Read full description

This app is for our customers to be able to register their devices and view device data behind a username / password system.

About

U

Features
Read full description

U-Manager is a third-party app developed independently to help you monitor and manage your Unraid server from anywhere, in a simple and intuitive way. KEY FEATURES: Complete Dashboard - Monitor your server status in real time - View CPU, RAM and disk usage - Check array and cache status - Disk activity: parity checks, rebuilds and resyncs in real time Docker Container Management - Start, stop and restart containers - Filter and search containers easily - Quickly open container web interfaces (WebUI) Virtual Machines - Control your VMs directly from the app - Full VM lifecycle management Torrent Client - Compatible with qBittorrent and Transmission - View real-time download/upload speeds, progress, ratio, ETA, seeds and peers - Filter by state: all, active, downloading, finished, paused or error - Add torrents via magnet link or .torrent file - Multi-selection actions on multiple torrents at once - Available as a one-time lifetime add-on purchase Native File Browser - Browse, upload, download and manage files directly in the app - Preview images and videos without opening them - File operations: copy, move, delete, rename and manage permissions - Background uploads with progress notifications Multi-Server - Manage multiple Unraid servers from a single app - Switch between servers with a single tap Security - Biometric authentication: Face ID / Touch ID - Encrypted credential storage - No personal data collection Notification Center - View and manage your server notifications - Bulk actions: mark as read, archive or delete REQUIREMENTS: - Unraid server 6.10 or higher - API Key configured in Unraid Settings → Management Access - Network connection to the server (local or remote) U-Manager is an independent project and is not affiliated with or endorsed by Lime Technology or Unraid. The name "U-Manager for Unraid" follows the naming format explicitly permitted by Lime Technology's trademark policy (unraid.net/policies). Unraid® is a trademark of Lime Technology, Inc. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jandrop.github.io/privacy_policy/PRIVACY_POLICY.html

Screenshots

M2M Recharge3 screens
U4 screens

Verdict

The call

The clearest difference is in-app purchases: M2M Recharge at none against U's 7. U's advantage is update cadence (weekly vs every 3 weeks) and device support (3 vs 1). On price, ads and iOS requirement 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. U sells 7 in-app purchases, starting at $2.99 per month. M2M Recharge asks for nothing beyond the download.

UpkeepUpdate frequency

M2M Recharge ships an update every 3 weeks, U weekly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
M2M Recharge versus U: the parameters behind the verdict, then further details
ParameterM2M RechargeU
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.315.0 — better
Further details — not scored
Size1 MB74 MB
Age rating4+4+
DeveloperM2M Technologies LLCAlejandro Platas Mallo

In-app purchases

None

M2M Recharge

No in-app purchases

7 purchases

U

Subscriptions2
  • U-Manager All Access (Monthly)1 Month trial$2.991 Month
  • U-Manager All Access (Annual)1 Month trial$12.991 Year
One-time5
  • Tautulli$1.99
  • Torrent$2.49
  • SSH$3.49
Show 2 more
  • File browser$4.49
  • Power Pack$6.99

Questions

Is M2M Recharge free?
M2M Recharge is free to download, with no in-app purchases.
Is U free?
U is free to download, with in-app purchases available.
Do M2M Recharge or U have ads?
Neither M2M Recharge nor U shows ads.
Which is updated more often, M2M Recharge or U?
M2M Recharge ships an update every 3 weeks, and U weekly. Most recently, M2M Recharge was updated on October 21, 2026 and U on October 24, 2026.

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