Comparison

RelCheck vs Tether

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

Head to head
About

RelCheck

Features
Read full description

RelCheck helps you maintain regular contact with the people who matter. When the mind gets easily distracted, relationships can quietly drift. RelCheck ensures they do not. Set how often you want to check in with each person. When the time comes, RelCheck reminds you. Reach out in your preferred way—call, message, or any channel you choose—then mark it as done and continue your day, with peace of mind. Features list: - Fit your needs: add your contacts and choose check-in intervals for each - Never forget: timely reminders - Optional daily quick check-in mode - Clean, quick, iOS-style, distraction-free experience - Privacy first: we don't need your data—keep it - Seamless iCloud backups and sync across devices - Works on iOS, iPadOS and macOS - Light and dark modes supported - English and French translations available Designed with a simple goal: staying present in your relationships.

About

Tether

Seamlessly integrate your mobile device with your Linux desktop. Share clipboards, transfer files, and discover your desktop locally over Wi-Fi. All communication is secured with end-to-end encryption, with no cloud servers or accounts needed.

Highlights
  • Shared Clipboard Sync
  • Bi-directional File Transfers
  • Local Network Discovery
  • End-to-End Encryption
  • No Cloud Services Required
Features
Read full description

Tether is an app designed for Linux users running custom desktop environments (Wayland). It provides essential ecosystem integration between your mobile device and your workstation, operating entirely over your local Wi-Fi. There are no cloud servers, third-party services, or accounts required. All data is routed strictly on your local network and secured with end-to-end mTLS encryption. Features: • Shared Clipboard: Sync clipboard text bi-directionally between your iPhone and your Linux machine. • File Transfers: Send documents, photos, and archives directly to your desktop, or receive files from it. • Local Discovery: Uses mDNS/Bonjour to automatically find your desktop - no static IP configuration needed. • Encrypted Connections: Device pairing and all network traffic are secured via mutual TLS certificates. Note: Tether is the iOS client app. To use it, simply run the free, open-source Tether desktop application (available as a CLI or GTK app) on your Linux machine. Visit the project's repository to download it and get started.

Screenshots

RelCheck4 screens
Tether3 screens

Verdict

The call

The clearest difference is iOS requirement: RelCheck at 17.0 against Tether's 26.1. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
RelCheck versus Tether: the parameters behind the verdict, then further details
ParameterRelCheckTether
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better26.1
Further details — not scored
Size3 MB6 MB
Age rating12+4+
DeveloperAnne FerretZack Bartel

In-app purchases

None

RelCheck

No in-app purchases

None

Tether

No in-app purchases

Questions

Is RelCheck free?
RelCheck is free to download, with no in-app purchases.
Is Tether free?
Tether is free to download, with no in-app purchases.
Do RelCheck or Tether have ads?
Neither RelCheck nor Tether shows ads.

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