Simplex vs Archivr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simplex
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Simplex™ is a generic tool to support participative observation networks. The Simplex™ smart app is one component of a more complete observation system that, in addition to the app, comprises a webGIS interface and a database. The application allows you to do any kind of thematic observation by driving the observers step by step, through explicit icons, to the right observation item, and to finally declare it (with our without photo) with geographical and spatial stamp. Observers have access at any time and any location to environmental data for the last three days that are extracted on-demand from environmental databases. At each observation are attached selected environmental parameters that allows, at any time, to correlate some observations with environmental context. Simplex™ can host several observation networks, either of public type (i.e. open to anyone) or of private type. You can contract a license for a private one to create your own network. The license covers the configuration of the observation campaign (i.e. the selection and the hierarchy of icons and the required environmental parameters, if of interest to you). It also covers an access to a private webGIS that provides a synoptic view of the observation done by your network. Your data is kept safely on a private storage without any access by a third-party. Once created you can invite anyone you want to become an observer to your network. You can also easily change and adapt the icons at all time. The app allows on-line discussion (text) between network organizer and observers. Simplex™ app is available in several languages (Arabic, English, French, German, Italian, Norwegian and Spanish). Want to create your own network or need for more information? Please contact simplex@acri.fr
Archivr
Securely pack, unpack, and password-protect your files locally on your device. Supports various archive formats including ZIP, 7z, and RAR, with strong AES-256 encryption. Your data stays private, never uploaded to the cloud.
- Create ZIP, 7z, TAR, TAR.GZ archives
- Extract ZIP, 7z, TAR, TAR.GZ, RAR
- AES-256 password protection
- Local-first operation, no cloud uploads
- Supports RAR4 & RAR5
- Intuitive user interface
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Pack, unpack and protect your archives with Archivr. File compression, extraction and archive password operations run on your device. • Create and extract ZIP, 7z, TAR and TAR.GZ archives. • Open and extract RAR4 and RAR5 archives. RAR is read-only. • Create AES-256 encrypted ZIP and 7z files in Pack. Remove protection from supported ZIP and 7z files with the current password. TAR and TAR.GZ do not support passwords. • Remove a password from supported PDF documents with the current password. • Choose files and save or share the results using system tools. If you choose a cloud destination or another app, that service handles the files you send. • Review up to 50 recent operations in History. History stores metadata, not archive passwords or file contents. • Use light or dark appearance. No Archivr account or login is required. The free version shows Unity Ads and Premium removes them. Crash diagnostics through Sentry, announcements through Cloudflare and optional email support run in every version, Premium included, and can process data over the network. Ad personalization depends on your consent. See the privacy policy for data categories, purposes and choices. Optional Premium removes ads: a lifetime purchase removes them permanently, and an annual subscription removes them while active. Prices and renewal details appear before purchase. An optional tip supports development without unlocking features. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Simplex at none against Archivr's 3. Simplex also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.5). Archivr's advantage is update cadence (every 2 days vs every 4 months). On price and device support 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. Archivr sells 3 in-app purchases, starting at $2.99 per year. Simplex asks for nothing beyond the download.
Simplex ships an update every 4 months, Archivr every 2 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | Simplex | Archivr |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 34 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | ACRI | Maciej Sieminski |
In-app purchases
Simplex
No in-app purchases
Archivr
- Archivr Premium Annual$2.991 Year
- Tip the developer$0.99
- Archivr Lifetime$9.99









