Comparison

Letters to Beyond vs MoodMetrics Study

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

Head to head
About

Letters to Beyond

This app offers a private space to express thoughts and feelings to loved ones, past or present. It allows users to write letters or record voice notes, with optional prompts to guide their writing. Your messages are kept confidential and are not shared or used for AI training.

Highlights
  • Write private letters
  • Record voice notes
  • Guided writing prompts
  • Secure and private storage
  • No AI training on user data
Features
Read full description

Some things don't get said in time. Some conversations end before we're ready. Some love has nowhere left to go. Letters to Beyond is a quiet, private space for the things you still need to say. Write a letter. Record a voice note. Find your words with a gentle prompt. Write freely A blank page, just for you. Write what's on your heart. Guided prompts On the days when you're not sure where to start — from memories and gratitude to the things that were never said. Voice notes Sometimes you need to speak it, not write it. Private by design. Your letters are yours. We don't read them, sell them, or use them to train AI. Ever. Letters to Beyond is not therapy or crisis intervention. If you're struggling, please reach out: 988 Suicide & Crisis Lifeline (call or text 988) or Crisis Text Line (text HOME to 741741).

About

MoodMetrics Study

Features
Read full description

The language you use and your behaviors can be important indicators of your mood. MoodMetrics easily analyzes the language you use when you send messages on your smartphone and estimates your physical and social activity from sensors on your phone. The language you use may be an important window into how you are feeling! Unlike paper measures that your provider might ask you to complete at treatment sessions, MoodMetrics estimates changes in mood and functioning with very little effort from you. You can review your results on the app to monitor your own mood and gain insight from the language, physical activity, and communication charts to help you better understand what might be contributing to mood changes. You can also share the results automatically with your therapist to give them a better idea of how your mood is changing and what factors might be contributing to mood changes between sessions. MoodMetrics is an easy way to track mood and improve communication with your therapist!

Screenshots

Letters to Beyond4 screens
MoodMetrics Study4 screens

Verdict

The call

Letters to Beyond and MoodMetrics Study are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Letters to Beyond versus MoodMetrics Study: the parameters behind the verdict, then further details
ParameterLetters to BeyondMoodMetrics Study
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size30 MB167 MB
Age rating12+4+
DeveloperLetters to Beyond LLCAvicenna Research Inc.

In-app purchases

None

Letters to Beyond

No in-app purchases

None

MoodMetrics Study

No in-app purchases

Questions

Is Letters to Beyond free?
Letters to Beyond is free to download, with no in-app purchases.
Is MoodMetrics Study free?
MoodMetrics Study is free to download, with no in-app purchases.
Do Letters to Beyond or MoodMetrics Study have ads?
Neither Letters to Beyond nor MoodMetrics Study shows ads.

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