NextSet vs Intervall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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**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
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.
- Custom interval workouts
- Save and reuse workouts
- Large, readable timer
- Apple Watch mirroring
- Watch controls
- Live heart rate display
- Apple Health integration
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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
Verdict
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
Both are free to download. NextSet sells 2 in-app purchases, starting at $6.99 per month. Intervall asks for nothing beyond the download.
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.
NextSet ships an update every 3 weeks, Intervall monthly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.
| Parameter | NextSet | Intervall |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 86 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | BENJAMIN MICHAEL,NEMIROFF WORLEY | Ruben Musca |
Customer experience
NextSet
Intervall
In-app purchases
NextSet
- NextSet Monthly Full Access7 Days trial$6.991 Month
- NextSet Yearly Full Access7 Days trial$64.991 Year
Intervall
No in-app purchases









