TransferSlot Alternatives

ROI & payback layer for verified listings

TransferSlot curates indie SaaS deals nicely, but the buyer still has to do the ROI math and trust seller-reported numbers. Startup Index adds live TrustMRR verification and puts annual ROI and payback in months on every card, so you shortlist on numbers instead of vibes.

TrustMRR-verified
Every listing here is backed by live Stripe, Paddle, or RevenueCat data via TrustMRR. No screenshots.
ROI shown upfront
Every card shows calculated annual ROI %, so you compare on returns before you ever click into a listing.
Payback in months
Know exactly how many months it takes for the deal to pay itself back. Nobody else shows this.

Startup Index vs TransferSlot

Startup Index is not a competing marketplace. It is a curation and decision layer that sits on top of TrustMRR-verified listings and adds the metrics acquirers actually decide on. Competitor data is based on publicly documented pricing and features at time of writing.

MetricStartup IndexTransferSlot
What it isCuration + ROI/payback layerCurated indie listing board
Data sourceTrustMRR (live payment data)Self-reported, editorially reviewed
ROI % on listing cardYes, on every listingNot shown
Payback in monthsYes, computed automaticallyNot shown
Revenue multiple shownYes, clearly labeledBuyer calculates
FocusSaaS and mobile appsSmall SaaS and side projects
Cost to browseFreeFree

Why acquirers use Startup Index alongside TransferSlot

Live verification
TransferSlot lists after editorial review. Startup Index adds live TrustMRR verification — the number stays current, not a snapshot.
ROI and payback upfront
TransferSlot shows the listing well; Startup Index adds the two metrics acquirers decide on: annual ROI percent and payback in months.
Broader coverage of indie deals
Startup Index actively indexes both indie and broker-listed SaaS and apps in the sub-$500k band, not just the curated few.

Live on Startup Index right now

Verified SaaS and apps with ROI, payback, and revenue multiple shown on every card.

Doors Delivered logo

Doors Delivered

SaaS
Founded
OCT 2021

DoorsDelivered.com is your trusted online supplier of high-quality internal doors and accessories. We specialise in a wide range of modern and classic solutions, including white doors, black doors, pocket doors, concealed doors, aluminium doors, frameless doors, fire doors, etc.. Designed for homeowners, developers, and trade professionals.With competitive pricing, expert support, and fast nationwide delivery. DoorsDelivered.com makes choosing the right internal doors simple and hassle-free.

Asking
$650K
1388.9x rev
Money back / yr
0.0%
~$117/yr profit
Payback
66666.7 mo
MRR$39
30d Rev$50K
Active Subs1
Margin25%
high confidence
BambooVPN logo

BambooVPN

App
Founded
SEP 2025

BambooVPN is a fast, no-logs VPN app with global servers. Stream, game and browse securely with one tap. Trusted by over 500000 users worldwide.

Asking
$800K
4.5x rev
Money back / yr
13.7%
~$109.5K/yr profit
Payback
87.7 mo
MRR$13K
30d Rev$14.9K
Active Subs1,563
Margin70%
high confidence
Pushouse logo

Pushouse

SaaS
Founded
JAN 2026

Pushouse provides software and technology services that enable e-commerce businesses to automate customer communication, marketing, and sales processes through WhatsApp and other digital channels. The platform offers WhatsApp automation, AI-powered chat flows, order notifications, customer support automation, digital marketing tools, and integration services with e-commerce systems to improve customer experience and increase online sales.

Asking
$875K
1.9x rev
Money back / yr
10.1%
~$88K/yr profit
Payback
119.4 mo
MRR$20.9K
30d Rev$38.2K
Active Subs170
Margin35%
high confidence
Aera Browser logo

Aera Browser

SaaS
Founded
DEC 2025

Build fully-autonomous workflows in your browser, easily. Schedule tasks. Manage long-running workflows. Connect your tools via MCP. Spend more time on the work that matters.

Asking
$939K
215.6x rev
Money back / yr
0.1%
~$1.1K/yr profit
Payback
10347.1 mo
MRR$363
30d Rev$210
Active Subs10
Margin25%
high confidence
PROSP logo

PROSP

SaaS
Founded
AUG 2025

Automate your LinkedIn Outreach with AI

Asking
$1M
0.8x rev
Money back / yr
1.2×
~$1.2M/yr profit
Payback
9.8 mo
MRR$128K
Active Subs1,108
Margin80%
high confidence
Bookedin logo

Bookedin

SaaS
Founded
JUN 2023

BookedIn ai is a no-code AI platform agencies use to create and manage AI receptionists and sales agents across voice, SMS, email, and messaging apps like Instagram. These agents can instantly engage leads after form fills, handle inbound calls, run outbound follow-ups, and reactivate old leads—qualifying prospects and booking meetings automatically to improve speed-to-lead, show rates, and revenue without extra headcount.

Asking
$1M
12.0x rev
Money back / yr
14.6%
~$145.5K/yr profit
Payback
82.5 mo
MRR$12.8K
30d Rev$6.9K
Active Subs94
Margin95%
high confidence

Ready to decide on numbers, not vibes?

Browse verified SaaS and app listings ranked by ROI and payback, then transact wherever the listing originates.

TransferSlot alternatives: FAQ

Is Startup Index like TransferSlot?

Same indie audience, different depth. TransferSlot is a curated listing board. Startup Index adds TrustMRR verification and computes ROI and payback on every card so you can shortlist on numbers.

Are TransferSlot listings verified?

TransferSlot reviews listings editorially but numbers are seller-reported. Startup Index verifies MRR live via TrustMRR (Stripe, Paddle, RevenueCat).

Does Startup Index charge anything?

No. Browsing and comparing is free and Startup Index doesn't take a cut of your deal.

Can I list on Startup Index like TransferSlot?

Listing is invite-driven and free. TrustMRR verification is required so the numbers on the card are trustworthy.

Why choose Startup Index over TransferSlot?

For evaluation. TransferSlot is a great discovery board. Startup Index is a decision layer — the two numbers that matter (ROI, payback) are on the card, over verified revenue.

Does Startup Index carry more listings than TransferSlot?

Startup Index actively indexes across indie and broker-listed sources in the sub-$500k band, so live inventory is typically broader.

Is Startup Index only for SaaS?

SaaS and mobile apps only. If you want content sites, e-commerce, or offline businesses, a broader marketplace like Flippa or BizBuySell is a better fit.

Do I need an account to see the numbers?

No. Every listing's verified MRR, ROI, payback, and revenue multiple are visible without signing up.

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