Comparison · Comms

Mailu vs Krisp

A side-by-side editorial comparison of Mailu and Krisp — release velocity, themes, recent moves, and the top alternatives to consider.

Mailu vs Krisp: at a glance

Feature	Mailu	Krisp
Sector	Comms	Comms
Velocity score	5.0	5.0
Sparks · 30d	0	0
Top themes	maintenance-branch, roundcube, cve-patching, self-hosted-mail	call-center-ai, transcription, voice-translation, fraud-detection
Last editorial update	3d ago	21h ago
Website	Visit →	—

What is Mailu?

Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures

Mailu's 2024.06 branch ships pinned releases, each tied to a single issue. October brought resolver fixes for the DNSSEC KSK rollover and SERVFAIL healthchecks, Roundcube 1.6.20, then PHP2Shell CVE mitigations in webmail followed by the patched PHP runtime. 2024.06.68 on 8 November carries the same PHP2Shell mitigation note again.

Read the full Mailu trajectory →

What is Krisp?

Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.

Krisp sells a Call Center AI suite to BPOs and contact centers: Accent Conversion, Voice Translation, QA scoring, deepfake and fraud detection. KrispCX 2.84.4 adds cloud transcription in beta for more accurate transcripts and Live Captions, plus in-call hints when the Krisp microphone is in use; the source note is truncated. October brought Conference mode for Voice Translation and a Fraud Detection beta.

Read the full Krisp trajectory →

Mailu vs Krisp: editorial side-by-side

Mailu

COMMS

5.0

Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures

◆ Current state

◆ Where it's heading

The project remains in one-fix-per-release maintenance on the 2024.06 line, with upstream webmail and PHP security driving much of the cadence. Nothing in the entries points to a new main release.

◆ Prediction

The next releases will most likely follow upstream Roundcube or PHP security fixes, as three of the last six did.

Krisp

COMMS

5.0

Krisp moves call transcripts and live captions to cloud transcription in KrispCX 2.84.4.

◆ Current state

◆ Where it's heading

Releases arrive on a two-week cadence and keep stacking agent-assist features on the live call, from translation to fraud signals to captions. The September move to free-to-try has been followed by incremental depth rather than new product lines.

◆ Prediction

Expect more of the live-call layer to move to cloud processing, with QA scoring and translation likely reusing the new transcription. The truncated notes leave the scope of the cloud beta unclear.

Alternatives to Mailu and Krisp

Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Mailu or Krisp.

Rspamd

Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.

Velocity 5.0

Compare with Mailu →Compare with Krisp →

Twilio

Twilio's voice AI stops cutting callers off mid-sentence, using its own turn-taking model.

Velocity 6.31 ⚡ · 30d

Compare with Mailu →Compare with Krisp →

Salesmsg

Salesmsg adds call-back requests and a one-click Emergency Stop for all outbound texts.

Velocity 6.31 ⚡ · 30d

Compare with Mailu →Compare with Krisp →

Element

Element 1.12.35 follows the call picture-in-picture release with one desktop storage fix.

Velocity 5.0

Compare with Mailu →Compare with Krisp →

Misskey

Misskey 2026.11 ships: a leaner start script, and Node.js 22 no longer boots.

Velocity 5.0

Compare with Mailu →Compare with Krisp →

SlickText

SlickText's feed is all SMS buying guides; no product release has surfaced since RCS.

Velocity 5.0

Compare with Mailu →Compare with Krisp →

See all Mailu alternatives → · See all Krisp alternatives →

Recent activity from Mailu and Krisp

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

22h agoKrispKrispCX 2.84.4 adds cloud transcription for transcripts and captions
5d agoMailu2024.06.68 re-ships the PHP2Shell webmail mitigation
18d agoKrispKrisp 2.83.4 adds Conference mode to Voice Translation (beta)
22d agoMailuMailu ships patched PHP for PHP2Shell CVEs
22d agoMailuMailu mitigates PHP2Shell webmail CVEs
24d agoMailuMailu 2024.06.65: Roundcube 1.6.20 update
26d agoKrispKrisp September roundup: translation accuracy reports, voice flags
28d agoKrispKrisp 3.18.3 AI Meeting Assistant Updates
1mo agoMailu2024.06.64 re-ships the resolver healthcheck fix
1mo agoMailu2024.06.63 makes the resolver healthcheck catch SERVFAIL
1mo agoKrispKrisp 2.82.6 adds real-time Fraud Detection beta for agents
1mo agoKrispKrisp 3.17.4 adds call duration tracking and notes alerts

Frequently asked questions

What is the difference between Mailu and Krisp?

They serve adjacent needs but don't currently overlap on shipped themes. Mailu and Krisp are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Mailu better than Krisp?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mailu and Krisp are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.

What are the best alternatives to Mailu?

Top Mailu alternatives in Comms are ranked by recent ship velocity. Browse the "Mailu alternatives" section above for the current picks, or visit /alternatives/mailu for the full list with editorial commentary on each.

What are the best alternatives to Krisp?

Top Krisp alternatives in Comms are ranked by recent ship velocity. Browse the "Krisp alternatives" section above for the current picks, or visit /alternatives/krisp for the full list with editorial commentary on each.