SOTA Log vs Stolo Systems
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SOTA Log
Log SOTA and POTA contacts quickly from the field with a single-field input for QSOs. Features live spotting, radio synchronization, and offline functionality for seamless operation.
- One-field QSO logging
- Live SOTA/POTA spotting
- Radio frequency and mode sync
- SMS spotting without data
- QRZ callsign lookup
- ADIF log export
- Offline operation
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The fastest way to log SOTA and POTA contacts from the field. Type a callsign, hit Send, and you're ready for the next station. SOTA Log is built for operators who need speed on the summit, not menus, settings, or setup screens. ONE-FIELD LOGGING Type your entire QSO in a single field. Callsign, RST, frequency, mode, and references are parsed inline as you type. Frequency carries over. Mode derives from band. Everything you'd normally tap through just works. LIVE SPOTS Browse real-time SOTA and POTA spots filtered by program and mode. Tap a spot to prefill your QSO and tune your radio in one step. SOTACAT RADIO SYNC Connect to your Elecraft KX2, KX3, or KH1 for automatic frequency and mode sync, one-tap spot pouncing, and a CW keyer with six programmable macros. SOTAMAT SPOTTING Spot yourself via SMS with no cell data required. SOTA and POTA spots are sent through SOTAmat so chasers can find you even without internet. QRZ & ADIF Look up callsigns and sync your logs to QRZ Logbook. Export ADIF filtered for SOTA or POTA submissions. OFFLINE FIRST All logging works without internet. Reference databases, contact history, and activation progress live on-device. Network features enhance the experience but never gate it.
Stolo Systems
This app provides encrypted, off-grid messaging that functions without internet connectivity. It creates a peer-to-peer mesh network using Wi-Fi, cellular, or LoRa radio, enabling secure communication of messages, photos, voice notes, and GPS locations even when cell towers or servers are unavailable.
- Off-grid encrypted messaging
- Peer-to-peer mesh network
- Works without internet
- End-to-end encryption
- Offline world map
- Emergency SOS beacon
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Stolo is an encrypted messenger that built off of Reticulum and LXMF Out of the box it is a private, end-to-end encrypted messenger: no account, no phone number, no sign-up. Your identity and your history live only on your device, and Stolo's gateway relays your messages across the internet. When you need more, the same app becomes your own network. Create a network, share one invitation, and everyone who joins is in each other's contacts, trusted, automatically. Phones link directly over Wi-Fi and cellular, and optional long-range LoRa radios carry messages where there is no signal at all. Messages to someone out of range wait and are delivered when they come back. What you can send, on or off the grid: • Messages, photos, and voice notes, end-to-end encrypted. Only the people in the conversation can read them. Not us. • Live GPS positions on a built-in offline world map. See yourself and your team with zero connectivity. Under the hood, Stolo is built on Reticulum, the open cryptographic mesh stack, and sets up in a minute with no config files. Used for backcountry trips, maritime, job sites, disaster response, and everyday group chats that should stay between the people in them. Built on privacy. Works every day, everywhere, and keeps working when nothing else does.
Screenshots
Verdict
The clearest difference is rating: SOTA Log at 5.0 against Stolo Systems's 4.7. Stolo Systems's advantage is ratings volume (10 vs 2) and iOS requirement (15.0 vs 17.0). 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.
SOTA Log holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Stolo Systems has 10 ratings behind it against 2, so its average is the more settled of the two.
SOTA Log ships an update fortnightly, Stolo Systems every 3 weeks. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | SOTA Log | Stolo Systems |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.7 (10 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 10 — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 265 MB |
| Age rating | 4+ | 4+ |
| Developer | Christopher Hunt | Stolo Systems Inc. |
Customer experience
SOTA Log
Stolo Systems
In-app purchases
SOTA Log
No in-app purchases
Stolo Systems
No in-app purchases









