Relationship Tracker vs Invisible String
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Relationship Tracker
Track the duration of your relationships with a beautiful interface and customizable backgrounds. Receive daily notifications and reminders for anniversaries. Share your relationship milestones easily with others.
- Relationship duration tracking
- Customizable background images
- Home screen widget
- Daily notifications
- Anniversary reminders
- Share tracking with friends/family
- Offline functionality
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Simple, elegant design shows you how long you have been together with beautiful background images. There is also a widget to track your relationship on your home screen. Daily notifications remind you how long you have been together and remind you of an upcoming anniversary 1 week in advance and another reminder 1 day before your anniversary. • Easily share your relationship tracking with friends and family • Post your relationship tracking to Facebook with one click • Works offline • Countless beautiful background images • Great to use as wallpapers Please email us or leave review feedback for feature requests or any other improvement suggestions you have for Relationship Tracker. We love to hear from you and are always looking to improve our Relationship Tracker app! Please share Relationship Tracker with your friends and family! Relationship Tracker Terms of Use: https://zaffles.bitbucket.io/countdownTimer/terms_of_use.html Thanks! Team Zaffles
Invisible String
Explore the hidden connections in your relationship by comparing geotagged photos with your partner. Discover shared locations and times you were near each other before officially meeting. Uncover the unique story of how fate may have brought you together.
- Compare geotagged photos
- Find 'near miss' locations
- Discover shared past moments
- See proximity details
- View side-by-side photos
- Privacy-focused local comparison
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Ever wonder if you and your partner crossed paths before you officially met? Invisible String reveals the hidden connections in your love story. HOW IT WORKS • Both partners scan their photo libraries to find geotagged photos • The app compares locations and timestamps to find "near misses" — times you were in the same place around the same time • Discover the coffee shop where you both grabbed lattes on the same Tuesday, or the concert where you stood just rows apart WHAT YOU'LL DISCOVER • The exact number of times your paths crossed • How close you came — sometimes just feet apart • The locations where fate brought you together • Side-by-side photos from your near-miss moments, once you and your partner choose to share them PRIVACY FIRST Matching uses only photo metadata (locations and timestamps), processed on your device. Your photos stay on your phone unless you choose to share them: you can send small previews of matched photos directly to your partner's phone over an encrypted device-to-device connection. You pick each photo, your partner accepts before anything is sent, and shared photos are stored only on your two devices. We never receive or store your photos on any server. PERFECT FOR • Couples curious about their "before we met" story • Anniversary gifts and relationship milestones • Anyone who believes in fate, destiny, or the invisible strings that connect us Unlock your complete love story and see just how many times the universe tried to introduce you before you finally met.
Screenshots
Verdict
The clearest difference is ads: Invisible String at none against Relationship Tracker 's shown. Invisible String also leads on review sentiment (100% vs 70%) and rating (5.0 vs 4.7). Relationship Tracker 's advantage is ratings volume (1.6K vs 2). On price, update cadence, in-app purchases and monetization model 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
Both are free to download. Relationship Tracker sells 4 in-app purchases, starting at $0.99 per month and Invisible String sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Invisible String holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Relationship Tracker has 1.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 70% of Relationship Tracker 's written reviews are positive against 100% of Invisible String's.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | Relationship Tracker | Invisible String |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.6K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 70.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.6K — better | 2 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 307 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Zaffles | CatalystNeuro, LLC |
Customer experience
Relationship Tracker
Invisible String
In-app purchases
Relationship Tracker
- Relationship Supporter/Monthly$0.991 Month
- Relationship Supporter/Annual$4.991 Year
- Relationship Tracker Lifetime$2.99
- Relationship Tracker Lifetime$6.99
Invisible String
- Unlock Your Story$2.99
- Expansion pack$2.99
Questions
Is Relationship Tracker free?
Is Invisible String free?
Which has better reviews, Relationship Tracker or Invisible String?
Do Relationship Tracker or Invisible String have ads?
Which is updated more often, Relationship Tracker or Invisible String?
Other comparisons
