AromaTru vs Span N
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AromaTru
This app controls a smart essential oil diffuser, offering revolutionary aromatherapy to enhance mood, energy, and well-being. It works with organic and wild-crafted essential oils for an elevated sensory experience.
- Smart essential oil diffuser control
- Revolutionary aromatherapy technology
- Enhances mood and energy
- Promotes good health
- Works with organic essential oils
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AromaTru Smart essential Oil Diffuser Revolutionary Aromatherapy Technology. Our exquisite organic and wild crafted essential oils work's with the world's most advanced essential oil diffuser to excite your senses and elevate your well-being. AromaTru believes that pure essential oils are natural gift to elevate your mood, to energize and revitalize your spirits and promote good health.
Span N
This application offers scientifically-backed cognitive training to enhance working memory and fluid intelligence. It utilizes the dual n-back task to progressively challenge users with visual and auditory stimuli, providing detailed analytics for progress tracking. Designed for daily practice, it aims to sharpen focus and improve mental agility.
- Dual n-back task training
- Visual and auditory stimuli
- Progressive difficulty levels
- Detailed analytics and tracking
- Privacy-focused, on-device data
- Exportable data (JSON/CSV)
- Dark mode support
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Train your brain with the gold standard of cognitive training. Span N-Back is a scientifically-designed working memory training app based on the dual n-back task — the only cognitive training method shown in peer-reviewed research to improve fluid intelligence. WHAT IS N-BACK TRAINING? The n-back task challenges you to remember sequences of positions and sounds, then identify when the current stimulus matches one from "n" steps back. It's simple to learn but progressively challenging, keeping your brain in the optimal training zone. WHY SPAN N-BACK? • Research-Based Design — Built on the Jaeggi dual n-back protocol used in cognitive science studies • Precision Timing — Sub-20ms stimulus accuracy for reliable training • Progressive Difficulty — Levels 1-9 adapt to your growing abilities • Dual Modality — Train visual and auditory working memory simultaneously • Detailed Analytics — Track accuracy, reaction time, and progress over time • Privacy First — All data stays on your device. No accounts, no tracking. WHO IS THIS FOR? Whether you're a student preparing for exams, a professional seeking mental edge, or anyone interested in cognitive fitness — consistent n-back training can help sharpen focus, improve working memory capacity, and enhance mental agility. FEATURES • Clean, distraction-free interface • Visual and audio training modes • Session history and performance tracking • Export your data (JSON/CSV) • Dark mode support • Designed for daily practice Start with 2-back and work your way up. Just 15-20 minutes daily can make a difference. Download Span N-Back and train smarter.
Screenshots
Verdict
The clearest difference is rating: Span N at 5.0 against AromaTru's 2.0. Span N also leads on ads (none vs shown) and monetization model (free vs ad-supported). AromaTru's advantage is ratings volume (5 vs 1). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Span N holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: AromaTru has 5 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | AromaTru | Span N |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Monthly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 50 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Aquatru LLC | Jerzy Plocha |
In-app purchases
AromaTru
No in-app purchases
Span N
No in-app purchases









