Comparison

NextSet vs Intervall

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

Head to head
About

NextSet

This app simplifies weight training with personalized targets and adaptive progression. It eliminates guesswork by analyzing your performance to suggest weights and reps, helping you get stronger with structured, data-driven workouts.

Highlights
  • Adaptive progressive overload engine
  • Set-by-set weight & rep recommendations
  • AI-generated workout programs
  • One-tap workout logging
  • Progress tracking (1RM, volume, PRs)
  • AI Coach for training insights
Features
Read full description

**Weight Training, Simplified** NextSet makes progressive overload simple — whether you’re brand new to the gym or years into lifting. No spreadsheets. No guessing what weight to use. Just clear, personalized targets every time you train. Show up. Follow the numbers. Get stronger. --- **Adaptive Progressive Overload Engine** (Paid Feature) At the core of NextSet is an auto-regulated performance algorithm built to adjust with you. Instead of fixed percentages or static plans, the system analyzes your actual reps, weight, volume, fatigue trends, and consistency — then recalculates future targets automatically. Perform above target? It scales up. Miss reps? It adjusts intelligently. Training in a deficit? Fatigue rising week over week? The algorithm accounts for it. • Set-by-set adaptive weight & rep recommendations • Goal-specific logic (hypertrophy, strength, endurance) • Fatigue-aware progression • Deload detection and regulation • Long-term progression modeling Progressive overload, engineered — not guessed. --- **Programs That Fit Real Life** (Paid Feature) Build your own split or generate one instantly with AI. Choose your training days, organize exercises by muscle group and equipment, and rotate programs whenever you want. • Large, curated exercise library • Easy program reordering and favorites • Smart muscle and equipment organization • Your current program always front and center Structured, but flexible. --- **Smarter Workout Sessions** (Paid Feature) Every set is pre-filled with weight and rep suggestions based on your recent performance and goals. • Automatic weight + rep targets • One-tap logging • Built-in rest timers • Skip or reorder exercises anytime • Session feedback that adjusts future suggestions The app evolves as you do. --- **Progress You Can See** (Paid Feature) Track what actually matters. • Estimated 1RM trends • Volume by muscle group • Personal records • Weekly load tracking • Fatigue monitoring • Surplus, maintenance, or deficit tracking Your training data finally works together. --- **AI Coach, Built In** (Paid Feature) Ask questions about your own training and get answers grounded in your data. “How has my bench progressed?” “Should I increase back volume?” “Build me a 4-day hypertrophy split.” The AI Coach sees your programs, workouts, and trends — and can generate charts and full programs instantly. --- NextSet brings structure, guidance, and clarity to weight training — without overcomplicating it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://traintime.lovable.app/privacy

About

Intervall

Create and run custom interval training routines with a clear, legible timer. This app syncs with Apple Watch to display heart rate and control workouts, and can save data to Apple Health.

Highlights
  • Custom interval workouts
  • Save and reuse workouts
  • Large, readable timer
  • Apple Watch mirroring
  • Watch controls
  • Live heart rate display
  • Apple Health integration
Features
Read full description

Intervall is a precise interval timer for training sessions on iPhone and Apple Watch. Build custom workouts from intervals, repeats, and rests, then run them with a clear timer designed to stay legible during movement. Features: • Build custom interval workouts with sets, repeats, and rest periods • Save workouts and return to them anytime • Run workouts on iPhone with large, readable timer controls • Mirror the session on Apple Watch • Control play, pause, and skipping from your watch • View live heart rate when a fresh reading is available from Apple Watch Intervall is suited to HIIT, circuits, mobility work, cardio intervals, strength blocks, and other structured workouts. Health and Apple Watch: The Watch companion can supply live heart rate during a workout. Without a Watch reading, the heart rate display stays hidden. When you run a workout on iPhone without the Watch, Intervall can save it to Apple Health.

Screenshots

NextSet4 screens
Intervall4 screens

Verdict

The call

The clearest difference is in-app purchases: Intervall at none against NextSet's 2. NextSet's advantage is ratings volume (10 vs 1) and iOS requirement (16.6 vs 18.0). On price, rating, update cadence and ads 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. NextSet sells 2 in-app purchases, starting at $6.99 per month. Intervall 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 NextSet against 5.0 for Intervall. That said, the two scores are not equally well evidenced: NextSet has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

NextSet ships an update every 3 weeks, Intervall monthly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
NextSet versus Intervall: the parameters behind the verdict, then further details
ParameterNextSetIntervall
PriceFreeFree
Rating5.0 (10 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings10 — better1
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS16.6 — better18.0
Further details — not scored
Size86 MB4 MB
Age rating12+4+
DeveloperBENJAMIN MICHAEL,NEMIROFF WORLEYRuben Musca

Customer experience

NextSet

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Intervall

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

NextSet

Subscriptions2
  • NextSet Monthly Full Access7 Days trial$6.991 Month
  • NextSet Yearly Full Access7 Days trial$64.991 Year
None

Intervall

No in-app purchases

Questions

Is NextSet free?
NextSet is free to download, with in-app purchases available.
Is Intervall free?
Intervall is free to download, with no in-app purchases.
Which has better reviews, NextSet or Intervall?
NextSet and Intervall are both rated 5.0 out of 5 on the App Store, from 10 and 1 ratings respectively.
Do NextSet or Intervall have ads?
Neither NextSet nor Intervall shows ads.
Which is updated more often, NextSet or Intervall?
NextSet ships an update every 3 weeks, and Intervall monthly. Most recently, NextSet was updated on October 10, 2026 and Intervall on October 24, 2026.

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