Comparison

RelayChat vs YAMATOMO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RelayChat

Communicate with others nearby even without an internet or cellular signal. This app uses Bluetooth mesh networking to relay messages hop-to-hop, ensuring connectivity in disaster zones, crowded events, or areas with poor reception. It prioritizes privacy with anonymous, end-to-end encrypted chats.

Highlights
  • Connects with zero signal
  • Bluetooth mesh networking
  • Anonymous and private chat
  • End-to-end encryption
  • Works in disasters and events
  • Relays messages hop-to-hop
Features
Read full description

Ever felt completely cut off with no signal? RelayChat is a new way to reach the people who matter, in places where the internet and cell networks simply don't reach. Using its own mesh network technology, phones connect to each other directly and relay your messages onward — hop to hop, like a bucket brigade. A lifeline to family and friends during a disaster. A way to stay connected with your group at a festival or out in the wild. Your everyday conversations become your emergency preparedness. Turn "no signal" into peace of mind — with RelayChat. 【Why RelayChat】 ▼ Connects even with zero signal RelayChat uses Bluetooth to let phones talk to each other directly. You can send and receive messages even where there's no internet or carrier signal at all. ▼ A network that grows as you do — mesh networking Every phone becomes a relay point. The more people using RelayChat nearby, the further your messages can travel. ▼ Privacy-first, anonymous by design No sign-up, no personal information required. End-to-end encryption keeps your conversations locked down, so you can chat safely and with confidence. ▼ Built for moments like these In a disaster or emergency When earthquakes, typhoons, or other disruptions knock out communication, check in on loved ones and share information with people at evacuation shelters. At festivals and events Crowded venues and packed live shows often jam cell networks — RelayChat keeps you connected with your group so no one gets lost. Outdoors and while traveling From mountain trails and campsites to unfamiliar signal conditions abroad, stay in touch even when reception is unreliable. In everyday dead zones Subways, tunnels, or airplane mode — talk to people nearby without needing a single bar of signal. 【Please note】 This app uses Bluetooth. For the best experience, please keep Bluetooth turned on while using the app. Communication range varies depending on obstacles and environmental conditions. Terms of Service: https://tsuzukit.com/legal/terms-of-service.html Privacy Policy: https://tsuzukit.com/legal/privacy-policy.html Commercial Transactions Act Disclosure: https://tsuzukit.com/legal/commercial-law.html

About

YAMATOMO

Features
Read full description

YAMATOMO — The Community App for Connecting with Fellow Mountain Enthusiasts "Going solo is great, but mountains are even better with company." YAMATOMO is a community app for everyone who loves the mountains — whether you're into hiking, trekking, trail running, skiing, or canyoneering. Find like-minded companions who share your passion. Just pick a mountain and a date, and discover others heading to the same peak. ◆ Mountain Chat — Instantly Connect with Others Heading to the Same Peak Simply select a mountain and a date. Chat in real time with others planning to be on the same mountain on the same day. Share trail conditions, discuss the weather, coordinate meeting points — the adventure begins before you even hit the trail. ◆ Communities — Find Your People, Your Way Recruit partners for upcoming trips, join groups that meet regularly, or discover events like trail running races and mountaineering workshops. Create or join communities that match your style. ▼ In-App Payments — Taking the Hassle Out of Event Organizing "Collecting fees is such a headache..." "Last-minute cancellations left me out of pocket..." Sound familiar? With YAMATOMO, participants pay for events directly through the app in advance. No more awkward cash exchanges or chasing bank transfers. Organizers can focus on planning great events, and participants can join with just their phone. ◆ Explore Over 6,000 Mountains and Companions on the Map Browse and search over 6,000 mountains worldwide from an interactive map. Filter by difficulty, elevation, or region to find the perfect peak for you. Easily spot nearby communities and partner shops that cater to mountain-goers — all on one map. ◆ Direct Messages & Group Chats Deepen the connections you make on the mountain. Use one-on-one direct messages or group chats to stay in touch with your mountain friends and plan your next adventure together. ◆ Partner Shops — Enhance Your Mountain Experience Discover outdoor gear shops, hot springs, lodges, and other partner businesses that make your trips more enjoyable. Check reviews from other users to find the best spots before and after your climb. ◆ Committed to Safety & Trust YAMATOMO is dedicated to creating a safe and welcoming environment for all users. ・Identity verification to build trust ・User reporting system ・AI-powered content moderation ◆ Premium Plan (500 yen/month) Unlock the full mountain experience. ・Unlimited access to Mountain Chat and Communities ・Album feature to organize and share your memories ・New features added on an ongoing basis Mountains aren't just about the views. They become something truly special when you share them with others. Find your mountain companions on YAMATOMO.

Screenshots

RelayChat4 screens
YAMATOMO4 screens

Verdict

The call

The clearest difference is in-app purchases: YAMATOMO at none against RelayChat's 4. YAMATOMO also leads on ads (none vs shown) and update cadence (every 4 days vs monthly). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RelayChat sells 4 in-app purchases, starting at $2.99 per month. YAMATOMO asks for nothing beyond the download.

UpkeepUpdate frequency

RelayChat ships an update monthly, YAMATOMO every 4 days. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
RelayChat versus YAMATOMO: the parameters behind the verdict, then further details
ParameterRelayChatYAMATOMO
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyMonthlyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size8 MB130 MB
Age rating17+9+
DeveloperRyo TsudukihashiYuhei YamauchI

In-app purchases

4 purchases

RelayChat

Subscriptions3
  • 1ヶ月プレミアムプラン1 Month trial$2.991 Month
  • 3ヶ月プレミアムプラン1 Month trial$8.993 Months
  • 1年間プレミアムプラン1 Month trial$24.991 Year
One-time1
  • Lifetime Premium$59.99
None

YAMATOMO

No in-app purchases

Questions

Is RelayChat free?
RelayChat is free to download, with in-app purchases available.
Is YAMATOMO free?
YAMATOMO is free to download, with no in-app purchases.
Do RelayChat or YAMATOMO have ads?
RelayChat shows ads; YAMATOMO does not.
Which is updated more often, RelayChat or YAMATOMO?
RelayChat ships an update monthly, and YAMATOMO every 4 days. Most recently, RelayChat was updated on October 30, 2026 and YAMATOMO on November 9, 2026.

Other comparisons