Comparison

VocalCalm vs Watta

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

Head to head
About

VocalCalm

Features
Read full description

Still replaying a conversation when everything else is quiet? Say it out loud instead of turning it over in your head. VocalCalm gives adults a structured voice space to talk things through with an AI wellness coach. No typing required. NOT JUST ANOTHER CHATBOT Designed by experienced clinicians, VocalCalm is a structured voice coaching system built around nine established approaches, guided practices and continuity between sessions — for difficult moments, everyday reflection and progress worth noticing. A COACH THAT REMEMBERS WHAT MATTERS Your coach retains important context between sessions — your goals, recurring patterns, milestones and skills you have practised — so you do not have to start from zero each time. It uses selected insight-level memories to adapt future sessions to your goals, progress and circumstances. PRIVACY, EXPLAINED CLEARLY No human coach joins your live session. VocalCalm saves selected structured insights for continuity. Specialist providers process the data needed to operate the service; see the privacy policy for details. A VOICE THAT FEELS CLOSER TO HOME Choose your preferred coach voice and region. VocalCalm matches regional voice accents for the UK and Ireland, the US and Canada, or Australia and New Zealand. Different coaching approaches use voices chosen to suit their style. NINE COACHING APPROACHES Complete the questionnaire or choose an approach yourself: • Cognitive Behavioural (CBT) • Dialectical Behaviour (DBT) • Acceptance and Commitment (ACT) • Interpersonal (IPT) • Psychodynamic • Humanistic • Solution-Focused • Trauma-Informed • Integrative GUIDED PRACTICES AND PROGRESS • 4-7-8 Breathing • Body Scan • 5-4-3-2-1 Grounding • Loving Kindness • Optional mood check-ins • Session summaries, recommendations and trends START WITH 2 FREE SESSIONS Every registered account includes 2 lifetime voice sessions, up to 30 minutes each, with no payment details required. VOCALCALM PREMIUM After your included sessions, Premium provides 4 voice sessions per billing month, up to 30 minutes each. Eligible new subscribers receive Apple’s paid introductory price for their first 3 months; the regular monthly price applies after that. The subscription has no free trial. Prices are shown in your local currency before purchase. Subscriptions renew unless cancelled in App Store settings. IMPORTANT VocalCalm provides wellness coaching, not therapy, diagnosis, crisis care or medical treatment. It is not a replacement for professional help. If you are in immediate danger, contact emergency services. Helpful resources for your region are available in the app. Terms: vocalcalm.com/terms Privacy: vocalcalm.com/privacy

About

Watta

Effortlessly log your rowing, biking, and skiing workouts by simply taking a photo of your machine's screen. AI automatically extracts your performance data, organizing it into a comprehensive training log. Connect with your club, compete on leaderboards, and share your progress with teammates.

Highlights
  • AI photo data extraction
  • Automatic workout logging
  • Support for Concept2 monitors
  • Manual workout entry
  • Training history and trends
  • Club and squad features
  • Leaderboards and competition
Features
Read full description

Every metre counts. Watta turns photos of your erg screen into a complete training log. Snap a picture of your Concept2 monitor after your workout, and AI extracts all your data automatically — distance, time, split, stroke rate, watts, calories, and more. No Bluetooth pairing. No cables. Just take a photo and you're done. Snap. Log. Done. Most rowers take photos of their erg screens after training. Those photos sit in camera rolls, never tracked, never analysed. Watta changes that. Upload a photo from your gallery and AI reads your PM5, PM4, or PM3 display in seconds - or any Rowing machine with a screen. Your data flows straight into your training log. You can also enter workouts manually if you prefer. Track every session See your full workout history in one place. Distance, time, average split, stroke rate, watts, heart rate, calories — all captured and organised. Review individual sessions or zoom out to spot trends across weeks and months of training. Join your club Watta is built for squad training. Join your rowing club, connect with your squad, and see how your teammates are training. Club admins can create squads, manage members, and keep everyone connected. Whether you're part of a university programme, a local rowing club, or a national team, Watta keeps your crew together. Compete on leaderboards See where you rank. Leaderboards let you compare your performance against your squad, your club, or the wider Watta community. Push yourself to climb the rankings and celebrate when you hit a new personal best. Social feed Follow your teammates and see their workouts in your feed. React to big sessions and leave comments. Training is better when you're not doing it alone. Works with all Concept2 monitors Watta supports PM5, PM4, and PM3 displays, and any rowing machine with a screen. The AI handles different screen layouts, angles, and lighting conditions. It even works with photos of rowers, bikes, and ski ergs. Row. Bike. Ski. Watta isn't just for rowing. Log your sessions on the Concept2 RowErg, BikeErg, or SkiErg — all in one app. Your data, organised Stop losing workouts to your camera roll. Watta gives you a proper training log that grows with every session. See your progress. Spot patterns. Get faster. Download Watta and start logging your metres. Watta is a fitness tracking app, not a medical device. Consult your physician before beginning any exercise program and before making any health-related decisions.

Screenshots

VocalCalm4 screens
Watta3 screens

Verdict

The call

The clearest difference is in-app purchases: Watta at none against VocalCalm's 2. On price, update cadence, ads 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. VocalCalm sells 2 in-app purchases, starting at $9.99 per month. Watta asks for nothing beyond the download.

UpkeepUpdate frequency

VocalCalm ships an update every 5 days, Watta every 9 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

Scorecard1 real difference · 8 level
VocalCalm versus Watta: the parameters behind the verdict, then further details
ParameterVocalCalmWatta
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size127 MB36 MB
Age rating17+17+
Developerehealth systems ltdSTEPHEN CHRISTOPHER MILTON

In-app purchases

2 purchases

VocalCalm

Subscriptions2
  • VocalCalm Premium — Monthly7 Days trial$9.991 Month
  • VocalCalm Premium — Annual$99.991 Year
None

Watta

No in-app purchases

Questions

Is VocalCalm free?
VocalCalm is free to download, with in-app purchases available.
Is Watta free?
Watta is free to download, with no in-app purchases.
Do VocalCalm or Watta have ads?
Neither VocalCalm nor Watta shows ads.
Which is updated more often, VocalCalm or Watta?
VocalCalm ships an update every 5 days, and Watta every 9 days. Most recently, VocalCalm was updated on October 5, 2026 and Watta on October 13, 2026.

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