Featured
01
PageLens AI — AI-Powered Website Reviews from $1
UnclaimedGet a comprehensive AI-powered website audit covering errors, UX, accessibility, SEO, performance, design, content, secu
pagelensai.com
reviewNext.jsVercel
13040.3%A+2026-04-17
All topicsTopic hub Submit yours
Customer Feedback apps and tools
Discover feedback collection, testimonials, surveys, research, and customer insight tools from indie builders.
FeedbackCustomer FeedbackTestimonialsUser ResearchAnalytics
29 public launches
Ranked by feature status, community signal, and product interest.
02
Experi
63Stop chasing late payments. Send professional invoices and automated reminders
experi.co.uk
invoiceCursorNext.js
12230.9%A+2026-03-18
03
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Placemarks
60Real places. Real people. No algorithms.
placemarks.co.uk
travelCursorNext.js
1861.6%A2026-03-18
04
DS
Day Skipper Theory
48Master the theory. Take the helm.
dayskippertheory.co.uk
sailingryadayskipperCursorNext.js
170A2026-03-18
05
Quiet Sleep
Private evening ritual with thought dumps, breathing, and sleep sounds
play.google.com
androidsleepjournalingReactFirebase
161A few months$0 bootstrappedB2026-05-10
06
CalculatorQueen Tip Calculator
Calculate tips, totals, and per-person bill splits with a selectable tip base.
calculatorqueen.com
tip calculatorbill splitpersonal financeNext.jsReact
632026-08-15
07
CalculatorQueen Milliwatt Calculator
Convert milliwatts and watts both ways with SI formulas, a scale chart, and CSV.
calculatorqueen.com
milliwatt calculatormw to welectrical powerNext.jsReact
562026-08-15
08
CalculatorQueen Celsius to Fahrenheit Calculator
Convert Celsius and Fahrenheit both ways with formulas, reference points, and a table.
calculatorqueen.com
celsius to fahrenheittemperature converterunit conversionNext.jsReact
521.9%2026-08-15
09
CalculatorQueen Roth IRA Calculator
Project Roth IRA growth and compare it with a simplified annually taxed account.
calculatorqueen.com
roth ira calculatorretirement planninginvestment growthNext.jsReact
492026-08-15
10
CalculatorQueen Centimeters to Millimeters Calculator
Convert centimeters and millimeters both ways using the exact metric factor.
calculatorqueen.com
cm to mmmetric converterlength conversionNext.jsReact
48B2026-08-15
11
PersonaHaven
Free tools for personality, relationships, career fit and practical self-reflection
personahaven.com
personality testsself reflectioncareer fitReactVercel
472.1%A2026-08-17
12
BrawlerStats — Brawl Stars Player Stats & Rankings
Search public Brawl Stars player stats, country rankings, brawler trophies, clubs, and recorded trophy races.
brawlerstats.com
LovableReact
43F2026-08-10
13
CN
YouChina
China entry-readiness checks for international travelers
you-china.com
china traveltravel planningesimNext.jsReact
412026-08-06
14
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CalculatorQueen Infinity Trick Lab
Test large powers and division-by-zero inputs while separating overflow, error, and infinity.
calculatorqueen.com
infinitycalculator behaviordivision by zeroNext.jsReact
27B2026-08-27
15
⚗️
CalculatorQueen AP Chemistry Score Calculator
Combine 60 MCQ results and seven FRQ rubric scores into a transparent 50/50 practice composite.
calculatorqueen.com
ap chemistrypractice scoremcqNext.jsReact
26B2026-08-27
16
🧬
CalculatorQueen AP Biology Score Calculator
Combine AP Biology practice component percentages with published weights into a 0–100 composite.
calculatorqueen.com
ap biologypractice compositemcq and frqNext.jsReact
26B2026-08-27
17
✍️
CalculatorQueen AP Lang Score Calculator
Audit the 45/55 AP Lang practice composite and compare dated, nonofficial planning models.
calculatorqueen.com
ap langessay rubricpractice compositeNext.jsReact
25B2026-08-27
18
🪨
CalculatorQueen Stone Calculator
Convert a measured stone area and depth into volume and mass using a declared bulk density.
calculatorqueen.com
stone quantitylandscape rockbulk densityNext.jsReact
22B2026-08-27
19
🏃
CalculatorQueen Air Force PT Calculator
Plan a USAF fitness score component by component under the clearly stated March 2026 standard.
calculatorqueen.com
air force fitnesspfrapt scoreNext.jsReact
22B2026-08-27
20
🌱
CalculatorQueen Garden Item Value Calculator
Compare user-entered garden-item value scenarios with dated base values, multipliers, and costs.
calculatorqueen.com
garden gameitem valuetrade planningNext.jsReact
21B2026-08-27
21
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CalculatorQueen Drywall Calculator
Plan net drywall area, panel size, waste allowance, and the whole sheets needed for a project.
calculatorqueen.com
drywallconstructionmaterial estimatorNext.jsReact
20B2026-08-27
22
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CalculatorQueen Overtime Calculator
Audit regular and overtime pay from visible hours, rate, threshold, and multiplier assumptions.
calculatorqueen.com
overtimegross payworkweekNext.jsReact
19B2026-08-27
23
🧾
CalculatorQueen Indiana Paycheck Calculator
Build an Indiana take-home-pay estimate from gross earnings and clearly stated withholding inputs.
calculatorqueen.com
indiana paychecktake-home paywithholding estimateNext.jsReact
19B2026-08-27
24
📅
CalculatorQueen ASQ Age and Score Worksheet
Calculate ASQ age and intervals or apply permitted missing-item arithmetic to entered totals.
calculatorqueen.com
asq agequestionnaire intervaldate calculationNext.jsReact
19B2026-08-27
Who are customer feedback tools for?
They help founders, product teams, and marketers collect qualitative and quantitative signals from users before investing in bigger campaigns.
Can feedback tools appear in multiple discovery surfaces?
Yes. Apps can appear through tags, categories, built-with pages, launch archives, maker profiles, and lists.