Comparison

Samawritten vs Cardiographer

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

Head to head
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.

About

Cardiographer

Features
Read full description

Cardiographer turns your iPhone's rear camera into a fingertip pulse reader. Cover the camera with a fingertip and watch your full pulse waveform at 240 samples per second — heart rate, the pulse shape with its dicrotic notch, and heart-rate variability for stress & recovery awareness. Everything is processed on your device; nothing is uploaded. SEE EVERY BEAT • Live pulse waveform at 240 Hz with beat-by-beat detail • One averaged beat with the dicrotic notch labeled • Heart rate (BPM) with signal-quality feedback STRESS & RECOVERY, YOUR WAY • HRV (SDNN) after every reading • Trends over time in History • Export readings as CSV PRIVATE BY DESIGN • 100% on-device processing — no account, no cloud, no tracking A FINGERTIP AND SOME LIGHT • Cleanest signal in daylight — just face the incoming light • Dark room? Turn on the flash with one tap, or use any lamp • Clear guidance for a good signal CARDIOGRAPHER PRO Unlimited readings, full history and CSV export with a monthly subscription — 7-day free trial for new subscribers. Payment is charged to your Apple ID account; the subscription auto-renews unless cancelled at least 24 hours before the current period ends. Manage or cancel anytime in Settings. Cardiographer is for general wellness and fitness only. It is not a medical device and is not intended to diagnose, treat, or monitor any medical condition. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://software.nanorescenter.com/cardiographer-privacy

Screenshots

Samawritten4 screens
Cardiographer4 screens

Verdict

The call

The clearest difference is in-app purchases: Samawritten at none against Cardiographer's 1. Cardiographer's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Cardiographer sells 1 in-app purchase, starting at $1.99 per month. Samawritten asks for nothing beyond the download.

UpkeepUpdate frequency

Samawritten ships an update every 4 months, Cardiographer every 2 weeks. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Samawritten versus Cardiographer: the parameters behind the verdict, then further details
ParameterSamawrittenCardiographer
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size19 MB10 MB
Age rating12+4+
DeveloperAranyo RayNANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI

In-app purchases

None

Samawritten

No in-app purchases

1 purchases

Cardiographer

Subscriptions1
  • Subscription7 Days trial$1.991 Month

Questions

Is Samawritten free?
Samawritten is free to download, with no in-app purchases.
Is Cardiographer free?
Cardiographer is free to download, with in-app purchases available.
Do Samawritten or Cardiographer have ads?
Neither Samawritten nor Cardiographer shows ads.
Which is updated more often, Samawritten or Cardiographer?
Samawritten ships an update every 4 months, and Cardiographer every 2 weeks. Most recently, Samawritten was updated on October 11, 2026 and Cardiographer on October 15, 2026.

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