Radius On Map vs Synapse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radius On Map
Easily visualize distances with a clear radius around any map pin. Set multiple circles to compare, search locations, and explore what's within a specific range. Offers standard and satellite map views with automatic pin saving for quick access.
- Set up to three radius circles per pin
- Location search and exploration
- Standard and satellite map views
- Automatic pin saving
- Distance comparison
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Quickly visualize a clear radius around any pin you place on the map! Features: - You can set up to three radius circles for a single pin, making it easy to compare multiple distances at the same time. - Includes location search and exploration tools, so you can instantly check what’s within a certain distance from you or any other location. - Offers both standard map views and satellite imagery for a more interactive and visually appealing experience. - Pins are saved automatically, allowing you to revisit them whenever you need. Use Cases: - When house hunting, check the distance from potential homes to schools, grocery stores, train stations, and more by placing pins and seeing the radius. - For dating apps, visualize where someone might be based on the distance shown. - Great for gamers (e.g., Airline Manager) to get a quick visual estimate of flight ranges from a hub airport. - Check compliance zones: Visualize important boundaries like delivery areas or the 150 air-mile radius for driver logs. - Plan trips by identifying tourist attractions or landmarks within a specific radius around your destination. - Use it for education, like geography or social studies projects, to explore what’s within a given range of a location. - Plan walking or jogging routes by setting a radius from your starting point. - Choose event locations easily by pinpointing areas that are central and convenient for all attendees. - During emergencies, map out evacuation zones to understand which residents fall within the range of nearby shelters. This app is perfect for simplifying exploration, planning, and decision-making!
Synapse
This app helps you stay connected with the people who matter most by remembering important details and suggesting when to reach out. It provides gentle nudges and conversation starters to bridge the gap between wanting to connect and actually doing so.
- Personalized contact reminders
- Remembers key personal details
- Customizable contact frequency
- Gentle nudges for outreach
- Conversation starter suggestions
- Privacy-focused design
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You think about someone. An old friend, a cousin, a coworker you really got along with. You think, "I should reach out." And then you don't. It is not because you stopped caring. Life just got busy. A week turned into a month. Now it feels a little awkward, so you put it off again. Synapse helps make that first step easy. It is a simple, warm app for the people who matter to you. Family, friends, your partner, the people you work with. It is not a contact list and it is not another app sending you reminders you ignore. It is quieter than that. You add the people you care about, and Synapse helps you remember the small things. Their kid's name. The big thing happening at their job. What they are going through right now. You choose how often you want to stay in touch with each person. Some people you want to talk to every week. With others, a few times a year feels right. Synapse keeps track, so you do not have to. And when it is time to reach out but you are not sure what to say, Synapse gives you a gentle nudge and a place to start. No pressure and no guilt. Just a little help turning "I should text them" into actually texting them. The name comes from the brain. A synapse is the small bridge where one part connects to another. That is what this app is. A small bridge that helps connection happen. If you have ever wanted to be a better friend, a more present partner, or someone who calls home more often, and you just needed a little help getting there, this was made for you. The people you care about matter. Synapse helps you stay close to them. Privacy Policy: https://synapsebond.com/privacy-policy Terms of Use (EULA): https://synapsebond.com/terms-of-service-2
Screenshots
Verdict
The clearest difference is in-app purchases: Radius On Map at none against Synapse's 2. Radius On Map also leads on ratings volume (82 vs 4). Synapse's advantage is ads (none vs shown) and rating (5.0 vs 4.5). On price, update cadence 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. Synapse sells 2 in-app purchases, starting at $6.99 per month. Radius On Map asks for nothing beyond the download.
Synapse holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Radius On Map has 82 ratings behind it against 4, so its average is the more settled of the two.
Radius On Map ships an update fortnightly, Synapse every 11 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Radius On Map | Synapse |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (82 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 82 — better | 4 |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 58 MB |
| Age rating | 4+ | 12+ |
| Developer | takeshi ogawa | Hovik Apinyan |
Customer experience
Radius On Map
Synapse
In-app purchases
Radius On Map
No in-app purchases
Synapse
- Synapse Premium14 Days trial$6.991 Month
- Synapse Premium1 Month trial$59.991 Year









