Comparison

Coherence by Presage Tech vs Samawritten

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

Head to head
About

Coherence by Presage Tech

This app offers interactive breathwork and wellness tracking, allowing users to monitor their pulse and breathing rhythms during exercise without wearables. It provides session summaries, activity history, and personalized recommendations to help users manage stress and improve fitness.

Highlights
  • Interactive breathwork sessions
  • AI wellness tracking
  • Pulse and breathing rhythm monitoring
  • Stress reduction tools
  • Fitness progression tracking
  • Session summaries and history
  • Activity recommendations
Features
Read full description

Coherence brings Presage Technologies’ interactive breathwork, AI and wellness tracking to your iPhone. - Leave your wearables at home. - Track your pulse and breathing rhythms while you exercise. - Fine tune your stress-reduction and fitness progressions with simple, engaging visuals. - Get a summary of each session that easily resets to go again wherever and whenever you are ready. - Discover new activities that can help you meet your goals. - Share your session information with coaches, trainers, yoga teachers, and the like. - View your history of activities to see how you are progressing. Disclaimer: Estimates are for informational and wellness purposes only and are not intended for medical use. Please consult a qualified healthcare provider for any health concerns.

About

Samawritten

Features
Read full description

Sama - Your Daily Health, Made Clear Sama helps you understand the health data your iPhone and Apple Watch already collect. It turns Apple Health readings, camera-based wellness check-ins, and daily activity into a simple view you can read in seconds. Your Day, At A Glance Open Sama and see how today is going without digging through charts. Heart rate, sleep, steps, oxygen, and movement come together in one daily health view with a clear score and easy-to-read cards. Camera Wellness Check-Ins Use your iPhone camera for quick wellness estimates when you want an extra check-in. Sama can estimate heart rate and related wellness signals from subtle color changes in your finger or face. Results depend on lighting, movement, camera position, skin characteristics, and signal quality, so Sama shows signal status clearly and withholds weak readings. Apple Health, Read-Only Sama reads Apple Health only after you allow access. It does not write to Apple Health, change your records, or add data you did not create. Your Apple Health data stays where it is. Trends And Calendar Tap back through previous days, review trends, and see how your numbers change over time. Sama is built for quick daily review, but the history is there when you need context. Smart, Gentle Insights Sama looks for useful patterns in your own history, such as resting heart rate changes, sleep shifts, activity changes, or oxygen trends. Insights are written to help you notice what changed, not to scare you or replace professional advice. Family And Caregiver Support You can pair with family or a caregiver so the right people can stay informed. Sama includes check-ins, sharing, reports, emergency contacts, and safety flows designed around everyday care. Reports You Can Share Export a simple health report when you want to discuss your recent history with a doctor, caregiver, or family member. You stay in control of what you share. Privacy First Your health data is personal. Sama does not sell your health data or use it for advertising. Sign in with Apple, Google, or email only if you want sync, backup, and sharing across devices. Important Sama is for general wellness and informational use only. Camera-based estimates are not medical measurements and are not intended to diagnose, treat, cure, prevent, or monitor any disease or condition. Do not use Sama for emergencies, medication decisions, treatment decisions, or medical decisions. If you have symptoms or concerns, talk to a qualified healthcare professional. If you believe you may be experiencing an emergency, contact local emergency services.

Screenshots

Coherence by Presage Tech3 screens
Samawritten4 screens

Verdict

The call

The clearest difference is update cadence: Coherence by Presage Tech at weekly against Samawritten's every 4 months. 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.

UpkeepUpdate frequency

Coherence by Presage Tech ships an update weekly, Samawritten every 4 months. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 8 level
Coherence by Presage Tech versus Samawritten: the parameters behind the verdict, then further details
ParameterCoherence by Presage TechSamawritten
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeekly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size122 MB19 MB
Age rating4+12+
DeveloperPresage Security IncAranyo Ray

In-app purchases

None

Coherence by Presage Tech

No in-app purchases

None

Samawritten

No in-app purchases

Questions

Is Coherence by Presage Tech free?
Coherence by Presage Tech is free to download, with no in-app purchases.
Is Samawritten free?
Samawritten is free to download, with no in-app purchases.
Do Coherence by Presage Tech or Samawritten have ads?
Neither Coherence by Presage Tech nor Samawritten shows ads.
Which is updated more often, Coherence by Presage Tech or Samawritten?
Coherence by Presage Tech ships an update weekly, and Samawritten every 4 months. Most recently, Coherence by Presage Tech was updated on November 5, 2026 and Samawritten on November 9, 2026.

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