Comparison

Delta Timer △ vs Calmplot

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

Head to head
About

Delta Timer △

This interval timer app guides users through various training routines like HIIT and Tabata. It offers customizable workouts with adjustable exercise and rest periods, featuring a minimalist design with light and dark modes for focused training.

Highlights
  • Customizable workout creation
  • Adjustable exercise and rest durations
  • Minimalist, distraction-free interface
  • Light and dark modes
  • Supports HIIT, Tabata, EMOM, and circuits
Features
Read full description

Delta Timer is a simple yet powerful interval timer built to keep you focused during training. It helps guide your HIIT, Tabata, or any other interval-based workout with ease and precision. Whether it’s HIIT, Tabata, EMOM, strength circuits, or a custom routine, Delta Timer adapts to your rhythm — guiding you through every round. Check some of the Delta Timer features: Customizable workouts: Create and fine-tune your training structure — from quick Tabata bursts to complete circuit sessions. Adjust exercise, rest, warmup, cooldown, and round durations with ease. Minimal and intuitive design: A distraction-free interface that keeps you aware of every phase of your workout, even mid-movement. Light and Dark Modes: Train comfortably anywhere, with a look that adapts to your environment. Free and ad-free: All essential features are available for free. No subscriptions, no clutter.

About

Calmplot

Quickly capture thoughts via voice or text and receive AI-powered reflections. Visualize your life's balance as a growing garden and identify patterns over time. Offers gentle prompts for small actions to foster progress.

Highlights
  • 30-second voice and text journaling
  • AI reflections
  • Mood tracking
  • Life balance garden view
  • Weekly reviews and pattern summaries
  • Memory recall
  • Full data export
Features
Read full description

Most journaling apps forget everything the moment you close them. Calmplot remembers — connecting what you write today to what you felt weeks ago, so the patterns in your life finally become visible. A JOURNAL THAT REMEMBERS Calmplot keeps your entries connected instead of stranded. Mention someone often and it links the entries they appear in. Over weeks it surfaces the themes you keep returning to, and how a relationship, a decision, or a mood has shifted over time — the connections that are hard to see from inside them. THOUGHTFUL AI REFLECTIONS Calmplot turns each entry into a simple reflection or follow-up prompt to help you notice what stands out and keep writing. It is designed for journaling support, not advice or treatment. VOICE OR TYPE IN 30 SECONDS Skip the blank page. Speak or write a quick entry whenever something feels worth capturing, whether that's during your commute, before bed, or between meetings. PATTERNS, MEMORIES, AND REVIEWS Over time, Calmplot helps you spot recurring themes, revisit meaningful moments, and review wins, challenges, and changes across your weeks. YOUR EMOTIONAL GARDEN See your life as a growing garden across six areas: Work, Health, Friends, Family, Growth, and Fun. No guilt-driven streaks. Just gentle, visible progress. PRIVATE BY DESIGN Your entries are encrypted before storage. AI features only run with your permission. We request zero-retention processing and do not allow public-model training. TINY ACTIONS When it fits, Calmplot suggests one small next step based on what you've been reflecting on, so insight can turn into follow-through. FEATURES • Long-term memory across your entries • Connections between the people and themes you write about • AI reflections after each entry • Go Deeper prompts while you write • 30-second voice and text journaling • Mood tracking and emotion tags • Garden view of life balance • Weekly reviews and pattern summaries • Full export anytime Start with one entry — your garden is waiting. Calmplot offers a free plan plus optional paid upgrades for additional AI features, voice time, and deeper reviews. Pricing is shown in the App Store and may vary by region. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in Account Settings after purchase. Calmplot is a journaling and reflection app. It does not provide medical advice, diagnosis, or treatment. If you are in crisis, contact emergency services or a crisis helpline. Privacy Policy: https://calmplot.com/privacy Terms of Use: https://calmplot.com/terms

Screenshots

Delta Timer △4 screens
Calmplot4 screens

Verdict

The call

The clearest difference is in-app purchases: Delta Timer △ at none against Calmplot's 3. Calmplot's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.1). On price, rating, ratings volume and update cadence 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. Calmplot sells 3 in-app purchases, starting at $9.99 per month. Delta Timer △ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Delta Timer △ against 5.0 for Calmplot. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Delta Timer △ ships an update every 10 days, Calmplot weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 5 level
Delta Timer △ versus Calmplot: the parameters behind the verdict, then further details
ParameterDelta Timer △Calmplot
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Number of ratings12 — better
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.115.6 — better
Further details — not scored
Size12 MB61 MB
Age rating4+12+
DeveloperThomas Delgado DiasChad Epstein

In-app purchases

None

Delta Timer △

No in-app purchases

3 purchases

Calmplot

Subscriptions2
  • Calmplot Premium Monthly$9.991 Month
  • Calmplot Premium Yearly1 Month trial$49.991 Year
One-time1
  • Calmplot Premium Lifetime$99.99

Questions

Is Delta Timer △ free?
Delta Timer △ is free to download, with no in-app purchases.
Is Calmplot free?
Calmplot is free to download, with in-app purchases available.
Which has better reviews, Delta Timer △ or Calmplot?
Delta Timer △ and Calmplot are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Delta Timer △ or Calmplot have ads?
Neither Delta Timer △ nor Calmplot shows ads.
Which is updated more often, Delta Timer △ or Calmplot?
Delta Timer △ ships an update every 10 days, and Calmplot weekly. Most recently, Delta Timer △ was updated on October 6, 2026 and Calmplot on October 16, 2026.

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