Comparison

比咚 vs No Trace

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

Head to head
About

比咚

Features
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比咚,为所有热爱生活的人打造的热闹聚集地!无论你是想认识结交新朋友,参加兴趣活动,还是随时记录分享高光瞬间,这里都能满足你。新友匹配、破冰突破自我,更多欢乐等你一起加入。 在比咚,每一次活动参与,都是快乐幸福的开端! 在比咚,你将获得: 1、通过偏好选择和活动参与,结识志同道合的人 2、发布动态,记录日常与精彩瞬间 3、通过更真实的资料与认证机制,获得更安心的互动体验,高质、真诚的相遇圈层。 4、一段认识自我、通往成熟关系的成长旅程。 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

No Trace

Features
Read full description

Encrypted code-based chat. No phone. No email. No account. Share an 8-character code with someone. They type it in. You are talking. End-to-end encrypted from your device. Nothing to log in to. Nothing to back up. WHY NO TRACE WORKS • No phone number — no SMS confirmation that fails in your country. You install, you chat. • No email — no recovery flow you have to remember. • No account — no profile, no friend list, no directory. • 8-character code — share on paper, by voice, by QR. Whoever has the code joins. Whoever does not, never sees the room. • Optional 2-layer code — share a room without leaking access. The join-code is the second gate. • Three privacy presets — Ghost saves nothing on your phone, Balanced keeps codes for one-tap re-open, Comfort keeps history too. Change anytime. • Screen-recording lock — your chats render as black in screen recorders. • App lock — optional tap-code on every launch. • 1-tap delete all data — Settings > Account > Delete. Nothing kept on our side. HOW IT IS DIFFERENT Signal needs a phone number. Telegram needs a phone number. WhatsApp needs a phone number. Threema gives you a permanent ID that lives forever. No Trace gives you a throwaway 8-character code per room — no identity follows you. WHO PICKS IT • Journalists collecting tips • Lawyers and doctors with confidentiality duties • Activists and advocates • Two people who want a chat that does not sit in either phone's backup • Teams who want a side channel separate from work tools CROSS-DEVICE iPhone, iPad, Web, macOS, Linux. Open the room on whatever you have nearest. PRIVACY YOU CAN VERIFY • No ads • Tracking limited to crash + basic analytics, disclosed in our privacy policy • Premium uses Apple Pay only — no external payment links • Delete all your data anytime: Settings > Account > Delete CONTENT SAFETY We have zero tolerance for objectionable content and abusive users. Every message can be reported with one tap (long-press > Report) and is reviewed within 24 hours. You can block any sender locally on long-press. Senders flagged for objectionable content are removed and ejected. Contact: hello@teamzlab.com. FEATURES • 1:1 and small-group code-gated rooms • Featured Topics — public rooms with daily prompts • Reply-to threading + emoji reactions • Edit and delete your own messages • Report and block any sender • Long-press copy • QR share for in-person joins • Three privacy levels you control PRICING 50 free messages on install. Premium is a one-time purchase — lifetime unlimited messages. No subscriptions. No recurring charges. No renewal. Install No Trace. Create a room. Share the code. That is the whole onboarding.

Screenshots

比咚4 screens
No Trace4 screens

Verdict

The call

比咚 and No Trace are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. 比咚 sells 10 one-off in-app purchases and No Trace sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

比咚 ships an update every 2 weeks, No Trace every 11 days. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
比咚 versus No Trace: the parameters behind the verdict, then further details
Parameter比咚No Trace
PriceFreeFree
Update frequencyEvery 2 weeksEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size143 MB100 MB
Age rating17+17+
Developer智学引擎(烟台)Teamz Lab Ltd

In-app purchases

10 purchases

比咚

One-time10
  • 100金币礼包$1.99
  • 查看谁喜欢我特权周度解锁$3.99
  • 查看谁喜欢我特权月度解锁$5.99
Show 7 more
  • 查看谁喜欢我特权季度解锁$17.99
  • 1050进阶金币礼包$17.99
  • 2050豪华金币礼包$29.99
  • 查看谁喜欢我特权年度解锁$39.99
  • 520超值金币礼包$69.99
  • 5000尊享金币礼包$69.99
  • 11500至尊金币礼包$149.99
1 purchases

No Trace

One-time1
  • Lifetime Access$4.99

Questions

Is 比咚 free?
比咚 is free to download, with in-app purchases available.
Is No Trace free?
No Trace is free to download, with in-app purchases available.
Do 比咚 or No Trace have ads?
Neither 比咚 nor No Trace shows ads.
Which is updated more often, 比咚 or No Trace?
比咚 ships an update every 2 weeks, and No Trace every 11 days. Most recently, 比咚 was updated on October 16, 2026 and No Trace on October 31, 2026.

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