Concentrations vs NAIIVE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Concentrations
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Concentrations is a powerful chemical calculator designed for laboratory professionals who need fast, accurate concentration calculations in the field. Say goodbye to manual dilution factor calculations, density conversions, and purity adjustments. The Problem We Solve: Ever needed to prepare a 1M sulfuric acid solution, but your stock bottle only shows "98% w/w" with molecular weight and density? Concentrations does the complex math for you instantly—just input your stock solution data and get precise preparation instructions with a single tap. Key Features: Smart Dilution Calculator – Calculate dilution parameters from stock solutions or known molar concentrations with ease Comprehensive Concentration Types – Support for Molar, Normal, Molal, Mole Fraction, Mass Concentration, Volume Fraction, and more Simple Input, Powerful Results – Enter your compound's molecular weight, desired concentration, and volume—Concentrations handles the rest Customizable Precision – Adjust decimal places in results to match your experimental requirements Localized Interface – Automatically adapts decimal indicators to your regional format Who It's For: Perfect for chemists, laboratory technicians, students, and researchers who need reliable concentration calculations without the hassle of manual computation. Stop fumbling with calculators and conversion tables. Get accurate results every time with Concentrations.
NAIIVE
This tool visualizes and analyzes atomistic simulations. It supports various scientific formats like LAMMPS, VASP, and GAMESS, making complex data accessible. Ideal for researchers and students in computational science.
- Atomistic simulation visualization
- Analysis tool
- LAMMPS support
- VASP support
- GAMESS support
- Machine-learning force field support
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NAIIVE is an experimental scientific visualization and analysis tool designed for atomistic simulations. ## Scientific Format Support Native support for widely used atomistic simulation formats, including: • LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator) Dump files (including .gz compressed trajectories) • VASP (Vienna Ab initio Simulation Package) POSCAR, OUTCAR, CHGCAR • GAMESS (General Atomic and Molecular Electronic Structure System) Input and output log files • Machine-learning force field and extended formats DeepMD (deepmd/npy, deepmd/raw) extended XYZ (extxyz)
Screenshots
Verdict
The clearest difference is device support: NAIIVE at 4 against Concentrations's 1. Concentrations's advantage is iOS requirement (18.5 vs 26.0). On price, update cadence, ads and in-app purchases 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.
Concentrations ships an update every 3 months, NAIIVE every 6 weeks. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.
| Parameter | Concentrations | NAIIVE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 18.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcal Casas Cartagena | Rui Zhou |
In-app purchases
Concentrations
No in-app purchases
NAIIVE
No in-app purchases
Questions
Is Concentrations free?
Is NAIIVE free?
Do Concentrations or NAIIVE have ads?
Which is updated more often, Concentrations or NAIIVE?
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