Comparison

HeartString vs Between Us

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

Head to head
About

HeartString

Features
Read full description

HeartString is your personal guide to stronger relationships. Stay connected, learn how to have meaningful conversations, explore your feelings, and develop the skills to truly understand the people who matter most.

About

Between Us

Explore your attachment style and improve your relationships through private journaling and AI-powered insights. Discover patterns, engage in healing exercises, and connect anonymously or with a partner.

Highlights
  • Private encrypted journaling
  • AI-powered attachment style reflection
  • Personalized healing exercises
  • Bridge Mode for partner sharing
  • Anonymous shared thought space
  • 30-day pattern insights
Features
Read full description

Understand your attachment style. Heal your relationships. What if we grew up learning how to love a certain way that caused us to be attached to people, but due to our attachment style, we self-sabotaged the relationships we cherished the most? Your attachment style — anxious, avoidant, secure, or disorganized — shapes how you love, fight, cling, and pull away. Between Us: Attachment combines private journaling with AI-powered reflection to help you identify your patterns and, with time, change them. What's inside: Journal — private writing, encrypted in transit and at rest. Your words are never shared or used to train AI. AI Reflections — after each entry, understand the attachment style, emotional tone, recurring themes, and a self-awareness score. Insights — a 30-day view of how your attachment patterns are shifting. Growth is slow; now you can actually see it. Healing Exercises — short, targeted practices matched to where you are today. A five-minute self-soothing for anxious moments. A "stay a little longer" prompt for avoidant ones. Bridge Mode (opt-in) — share the emotional weather of your inner world with a partner - whether that's a family member, partner, friend, or anyone important to you, never the words themselves. Climate snapshots, a daily sync score, and full control to disconnect at any time. The Lake — cast a thought into a shared, anonymous space when it's too heavy to sit with alone. Tagged by attachment style. No names. No replies. Faith Lens - understand your analysis through your faith.* Why it's different: Most journaling apps give you a blank page. Most therapy apps hand you a workbook. Between Us sits between the two — pairing attachment theory with private journaling and AI-assisted reflection so you can work on the specific patterns that affect your closest relationships. Your privacy, fully protected Your entries are yours alone. They are never shared with a partner (even in Bridge Mode), never seen by the Between Us team, and never used to train AI models. Pricing: Free to start — includes 3 AI reflections, 1 Lake post, and 1 healing exercise per day. Between Us Pro ($12.99/month or $79.99/year) unlocks unlimited reflections and exercises, full Insights, Bridge Mode, and unlimited Lake posts. Cancel anytime through your Apple ID settings. Between Us: Attachment is a journaling companion for self-reflection. It is not a medical device and is not a substitute for professional therapy. If you are in crisis, please contact a licensed mental-health professional or your local crisis line. Terms of Use: https://betweenusattachment.com/terms/ * Faith lens is currently available for Christian and Islam. We look to add more faiths in the near future.

Screenshots

HeartString4 screens
Between Us4 screens

Verdict

The call

The clearest difference is in-app purchases: HeartString at none against Between Us's 2. HeartString also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and ads 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. Between Us sells 2 in-app purchases, starting at $12.99 per month. HeartString asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.

Scorecard3 real differences · 7 level
HeartString versus Between Us: the parameters behind the verdict, then further details
ParameterHeartStringBetween Us
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.0
Further details — not scored
Size49 MB28 MB
Age rating4+17+
DeveloperCrankApps, Inc.SARJIL HASAN

In-app purchases

None

HeartString

No in-app purchases

2 purchases

Between Us

Subscriptions2
  • BetweenUs Monthly$12.991 Month
  • BetweenUs Yearly$79.991 Year

Questions

Is HeartString free?
HeartString is free to download, with no in-app purchases.
Is Between Us free?
Between Us is free to download, with in-app purchases available.
Do HeartString or Between Us have ads?
Neither HeartString nor Between Us shows ads.
Which is updated more often, HeartString or Between Us?
HeartString ships an update monthly, and Between Us monthly. Most recently, HeartString was updated on September 24, 2026 and Between Us on September 26, 2026.

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