LazyApply vs Sonara vs Sottos · Apply: 30-Day Test
We ran LazyApply, Sonara, and Sottos · Apply for thirty days on the same candidate profile and counted real recruiter replies. Here's the methodology, the numbers, and which one we'd ship to a real job hunt.
TL;DR — LazyApply wins on raw volume — up to 1,500 applications a day on Ultimate. Sonara wins on hands-off-ness — set filters, walk away. Sottos · Apply wins on reply rate, because it ties the same profile to a tailored resume and cover letter per posting and to a live interview overlay once a recruiter replies. We measured all three over thirty days on the same profile.
Setup — what we tested, on whom
One synthetic profile: a five-year senior backend engineer based in the UK, open to remote-EU, target salary £90-£120k. Same resume, same LinkedIn, same target titles loaded into each tool. Each tool ran for ten days in series — no overlap — to avoid recruiter cross-contamination.
Metrics: applications submitted, recruiter replies (positive + neutral), first-round interview invites, and a qualitative read on tailoring quality (resume + cover letter actually customized vs. boilerplate substitution).
LazyApply — volume play, tailoring optional
LazyApply is a Chrome extension that mass-applies across LinkedIn, Indeed, ZipRecruiter, and DICE. The Ultimate tier publicly advertises up to 1,500 applications per day. Pricing on the public page: $99 / $149 / $999 per year as of test month.
What we observed in 10 days: 4,200 applications submitted, ~3% reply rate (positive + neutral), 6 first-round invites. Tailoring was minimal — multiple resumes can be uploaded and slotted by keyword match, but the cover letter is templated.
Best for: candidates who want maximum volume into the recruiter funnel and are comfortable with templated outreach.
Sonara — hands-off, narrower volume
Sonara positions as fully automated: set your preferences, and the tool applies on your behalf to roles it thinks fit. The interface is the lightest of the three.
What we observed in 10 days: 380 applications, ~6% reply rate, 8 first-round invites. Tailoring was better than LazyApply — Sonara appears to do some matching between job description keywords and resume bullets — but not posting-by-posting customization.
Best for: candidates who want to set filters and not touch the tool. Lower volume, higher relative reply rate.
Sottos · Apply — per-posting tailoring + the interview handoff
Sottos · Apply takes a different posture: lower volume, explicit per-posting tailoring of the resume + cover letter, and a handoff to the Sottos interview overlay when a recruiter replies. The same profile that powered the application also grounds the live interview cue cards.
What we observed in 10 days: 290 applications, ~11% reply rate, 14 first-round invites. The tailoring was the difference: every cover letter referenced two specific bullets from the job description and one matching achievement on the resume. Reviewers can audit each submission in the dashboard.
Best for: candidates who want fewer, sharper applications, and who plan to interview shortly after applying — the interview overlay is on the same plan.
“Sending the same resume to two hundred jobs is over. The per-posting tailoring loop is what lifted the reply rate.”
Reply-rate at a glance
- LazyApply: 4,200 apps · 3% reply · 6 invites · $99-$999/yr.
- Sonara: 380 apps · 6% reply · 8 invites · pricing not on /pricing page at test date.
- Sottos · Apply: 290 apps · 11% reply · 14 invites · Free / $29 / $99 monthly.
Reply rate is the metric that matters. Volume above 1,000/day mostly raises the chance of triggering recruiter spam filters on LinkedIn. Sharper applications outperform broader ones — every test in this category for two years has shown the same shape.
ATS coverage and risk
Most LinkedIn-volume tools live downstream of LinkedIn's terms of service. Mass-applying via automation has historically triggered account restrictions; LinkedIn updates its detection model on a moving cadence. Read your platform's ToS — and don't conflate reported incidents with guaranteed bans. As of test month, none of the three tools have a public, employer-side ATS coverage list with the same shape, so direct compare on that axis is noisy.
Which one we'd ship
If you're job-hunting today: Sottos · Apply. The reply rate justifies the lower volume, and the same plan covers the live interview overlay once recruiters get back to you. See the apply product page.
If you specifically want maximum volume and the cost of low reply rates doesn't bother you: LazyApply Pro. If you want hands-off and don't mind opaque tailoring: Sonara.
Frequently asked
Does auto-apply get you banned on LinkedIn?
It can. LinkedIn's terms of service prohibit automation against the platform. Tools that route through your LinkedIn session sit in a grey zone. ATS-direct paths (Greenhouse, Lever, etc.) avoid that risk entirely.
How many applications should I send a day?
More than ten, less than a hundred — if each is tailored. Volume above 100/day usually means template substitution and the reply rate collapses to <2%.
Will recruiters know I used AI to write my cover letter?
If it's templated, yes. If it cites two specific bullets from the JD and one matching achievement on your resume, no — and that's the bar.
Can I see what was submitted on my behalf?
Sottos · Apply records every submission with the exact bytes (resume PDF + cover letter + screening answers) and signs the artifact. Auditable from the dashboard.
Does the same Sottos plan include the interview overlay?
Yes. Pricing — one plan covers apply and interview. The profile is shared.
Try Sottos · Apply
Start free — no card required. Same profile powers the interview overlay once a recruiter replies. Read the per-posting tailoring deepdive.