Comparison

Mercury Messaging vs Mood Signals

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

Head to head
About

Mercury Messaging

Features
Read full description

Mercury is a standalone Telegram client designed specifically for Apple Watch. Stay connected wherever you are and manage your chats directly from your wrist, no iPhone required. Mercury delivers a truly native watchOS experience, it’s also completely open-source, offering full transparency and a privacy-first approach you can trust. Whether you’re training, traveling, or simply away from your phone, Mercury keeps you connected at a glance. What you can do with Mercury - Read and reply to Telegram messages instantly - View different types of media (like photos and stickers) - Listen to audio messages directly on your watch - Easily access chats organized in folders Effortless messaging - Type with the keyboard or dictation - Record and send voice messages with a refined, custom interface - Send stickers and add reactions with ease Simple, secure login - Scan the QR code with your phone - Alternatively login by typing your phone number. Mercury is an independent, open-source project built on the official Telegram API and is not affiliated with Telegram LLC.

About

Mood Signals

Features
Read full description

Mood Signals is a simple mood tracking app that helps you log your daily emotional states and identify patterns over time. How it works: Each day, you can complete a quick check-in to record how you are feeling. The app organizes your entries into a clear overview, showing your mood distribution across categories such as Great, Good, Okay, Low, and Bad. Understand your triggers: The app helps you connect your moods with potential triggers. You can log which factors may have influenced your emotional state, such as Sleep, Work, Weather, Family, Friends, Health, Money, and more. Custom triggers can also be added to match your personal needs. Review your patterns: The Weekly Review and Triggers Map provide visual insights into your emotional trends. You can see which triggers appear most frequently, how your mood compares to previous days, and what might be affecting your overall well-being. Focus on what matters: The app includes optional focus tags to help you stay aware of areas you want to pay attention to. These are simple reminders, not medical advice. Your data stays private: All your entries are stored locally on your device. You can optionally back up your data to Google Drive or iCloud, but we do not have access to your personal entries.

Screenshots

Mood Signals4 screens

Verdict

The call

The clearest difference is ads: Mercury Messaging at none against Mood Signals's shown. On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Mercury Messaging versus Mood Signals: the parameters behind the verdict, then further details
ParameterMercury MessagingMood Signals
PriceFreeFree
Update frequency—Every 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size84 MB40 MB
Age rating17+4+
DeveloperAlessandro AlbertiIINTERGO PTE. LTD.

In-app purchases

None

Mercury Messaging

No in-app purchases

None

Mood Signals

No in-app purchases

Questions

Is Mercury Messaging free?
Mercury Messaging is free to download, with no in-app purchases.
Is Mood Signals free?
Mood Signals is free to download, with no in-app purchases.
Do Mercury Messaging or Mood Signals have ads?
Mood Signals shows ads; Mercury Messaging does not.

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