Comparison

Calmena vs Arc

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

Head to head
About

Calmena

Features
Read full description

Calmena supports people living with emetophobia, the fear of vomiting. The app offers a guided 14-day journey that you follow at your own pace. ONE STEP EACH DAY A short lesson to understand what is going on, then an exercise that matches your level. There is no calendar to keep up with. The next day opens once you have practised. GENTLE PROGRESSION Gradual exposure exercises start with single words, then move on to descriptions, images, and finally sounds and videos. You rate your anxiety before and after each session to follow your progress. WHAT CALMENA INCLUDES • A 14-day journey with 9 short lessons • Nearly 200 exposure items across 4 levels • More than 130 everyday challenges, from the easiest to the most demanding • Breathing and relaxation exercises, available at any time • A journal to note your mood, your anxiety and your thoughts • Tracking of the safety behaviours you want to reduce • Statistics to see how far you have come • A quick help button for difficult moments A STRUCTURED APPROACH The exercises are inspired by CBT literature. Sources are listed in the app. FREE TRIAL AND SUBSCRIPTION Your first session is open without a subscription. To follow the whole journey, the annual subscription starts with 14 free days, then costs €19.99 per year. Nothing is charged during the trial. The subscription renews every year unless you cancel at least 24 hours before the renewal date, from your App Store account settings. YOUR DATA Your data belongs to you. You can export it or delete your account at any time from your profile. IMPORTANT Calmena is a well-being support app. It does not replace medical or psychological care. If anxiety keeps you from living normally, please talk to a health professional. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://calmena.app/en/privacy/

About

Arc

This app provides a structured and private way to practice exposure therapy for anxiety. It guides users through creating and following exposure ladders, logging attempts, and tracking progress. Advanced features offer deeper insights and therapist-ready summaries.

Highlights
  • Build and edit exposure ladders
  • Log and track anxiety attempts
  • Monitor anxiety levels and outcomes
  • View progress trends and milestones
  • Utilize practical support tools
  • Export and import data
Features
Read full description

Arc helps you practice exposure therapy in a structured, private, and repeatable way. Choose a pack, follow a clear ladder, and log one attempt at a time with a defined target behavior. Arc is built for process-first progress: show up, follow your plan, and build tolerance through repetition. Outcomes still matter, but consistency is the foundation. You’ll also get lightweight motivation through practice points and level progress, without turning your recovery into a game. What you can do: - Build and edit your exposure ladder - Start or log attempts with clear target behaviors - Track predicted, peak, and end anxiety - Log outcomes and notes after each attempt - View progress trends and milestones over time - Use practical support tools between attempts - Export and import your data (JSON) Pro features include adaptive next-step suggestions, deeper analytics, therapist-ready summaries, and enhanced progress insights. Your data stays local on your device by default. Terms of Use: https://gradualexposurehelp.com/terms/ Privacy Policy: https://gradualexposurehelp.com/privacy/

Screenshots

Calmena4 screens
Arc4 screens

Verdict

The call

The clearest difference is update cadence: Arc at every 3 days against Calmena's monthly. 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. Calmena sells 1 in-app purchase, starting at $17.99 per year and Arc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Calmena ships an update monthly, Arc every 3 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 8 level
Calmena versus Arc: the parameters behind the verdict, then further details
ParameterCalmenaArc
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size24 MB38 MB
Age rating12+17+
DeveloperTechprogZanaWorks LLC

In-app purchases

1 purchases

Calmena

Subscriptions1
  • Premium 1 Year$17.991 Year
1 purchases

Arc

One-time1
  • Pro Lifetime$14.99

Questions

Is Calmena free?
Calmena is free to download, with in-app purchases available.
Is Arc free?
Arc is free to download, with in-app purchases available.
Do Calmena or Arc have ads?
Neither Calmena nor Arc shows ads.
Which is updated more often, Calmena or Arc?
Calmena ships an update monthly, and Arc every 3 days. Most recently, Calmena was updated on November 9, 2026 and Arc on November 5, 2026.

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