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Boston · July 2026 · Chrome Extension

Know before
you tour.

AI analysis for every Boston rental on Zillow and Apartments.com. Photos scored, location mapped, value benchmarked — verdict in 20 seconds.

First analysis free. No card needed. Zillow + Apartments.com

Zillow
supported
Apartments.com
supported
Boston
July 2026
NYC
September 2026

How it works

Three steps. Under 30 seconds.

No copy-paste. No tab switching. The extension reads the listing page directly.

01

Browse normally

Navigate to any rental on Zillow or Apartments.com in Boston. RentLens detects the listing automatically — single units, building drilldowns, all page types.

Zillow · Apartments.com
02

Click the icon

First analysis is free — no card needed. Enter your email once for passwordless access. The extension reads photos, price, location, and amenities directly from the page.

Free first analysis · No card
03

Get your verdict

In ~20 seconds: overall score out of 100, photo breakdown, commute times to 6 Boston hubs, amenity detection, and a plain-English recommendation.

~20 seconds

What you get

Four signals. One verdict.

Every analysis covers the four things that actually determine if an apartment is worth it.

Photo Analysis

Claude AI reviews up to 25 interior photos and scores five dimensions — Overall Condition, Kitchen, Bathrooms, Space & Light, and Finishes. Each rated 1–10. Kitchen counter space and usability weighted heavily.

Overall Condition Kitchen Bathrooms Space & Light Finishes

Location Score

Walk, transit, and bike scores plus real commute times to 6 Boston hubs on Tuesday at 9am. Back Bay, Downtown, South Station, Kendall Square, Fenway, and Logan Airport. School proximity included.

Walk Score Transit Score 6 Hubs Schools

Amenity Detection

In-unit laundry, AC, parking, heat included, dishwasher, gym, outdoor space — detected automatically from listing and building data. Weighted for Boston's rental reality.

Laundry AC Parking Heat Pets Gym

Market Value

Zip-level ZORI rent benchmarks, adjusted for bedroom count and the unit's quality score. See the exact dollar difference between asking price and what the market says this unit is worth at its quality level.

ZORI Benchmarks Quality-Adjusted Dollar Diff

Real verdicts

This is what RentLens tells you.

Three Boston listings. Three different verdicts.

RentLens

21 Radcliffe Rd · Allston

2bd · $2,950/mo

Great Deal

$180 below market

82
/100
Photos
88
Location
79
Amenities
71

"Real hardwood, updated kitchen, Walk Score 93. Priced below what I'd expect for this quality in 02134. Tour this week."

RentLens

447 Comm Ave · Brighton

1bd · $2,200/mo

Fair

At market · $20 above median

58
/100
Photos
62
Location
71
Amenities
44

"Functional but dated — 90s kitchen, carpet in bedroom. Good T access saves it. Fair price for what you're getting."

RentLens

312 Newbury St · Back Bay

Studio · $3,100/mo

Overpriced

$380 above market

41
/100
Photos
48
Location
79
Amenities
28

"You're paying for the zip code. Tiny studio, minimal light, almost no counter space. Better options exist at this price."

How scoring works

What goes into your score.

A weighted combination of photos, location, and amenities — weighted by how many interior photos are available.

4+ photos

Full analysis

Photos
50%
Location
25%
Amenities
25%

1–3 photos

Limited photos

Photos
30%
Location
35%
Amenities
35%

No photos

Location & amenities only

Photos
0%
Location
50%
Amenities
50%
Verdict What it means
Great Deal Best of market
Good Deal Worth a look
Fair At market rate
Slightly Overpriced Negotiate first
Overpriced Pass on this one

Pricing

Pay per analysis. No subscription.

Designed for apartment hunting season — not a recurring charge you forget about.

First analysis free — no credit card required

Every new email gets one free analysis. No commitment.

Add to Chrome

Credit Packs

Buy once, use anytime. Credits never expire.

5 analyses
$0.40 per analysis
$1.99
10 analyses
$0.35 per analysis — save 12%
$3.49
25 analyses
$0.30 per analysis — save 25%
$7.49

Time Passes

Unlimited analyses for a stretch. Perfect for the September rush.

24-hour pass
up to 25 analyses
$2.99
7-day pass
up to 120 analyses
$9.99

Coverage

Boston first. More cities coming.

Built for dense rental markets where every dollar and every decision matters.

September 2026

New York City

Manhattan · Brooklyn · Queens

Zillow + Apartments.com

Join NYC waitlist
2027

More cities

Chicago · Los Angeles · Seattle · Washington D.C.

Request a city

Follow along

Behind the scenes.

Boston apartment market data, product updates, and Rate My Apartment every week.

FAQ

Common questions.

Your first analysis is completely free — no credit card required. After that, credits start at $1.99 for 5 analyses. No subscription — buy credits when you need them and they never expire.
Zillow and Apartments.com, covering all Boston-area neighborhoods. NYC support launches September 2026 with Manhattan, Brooklyn, and Queens coverage.
The value score uses Zillow's ZORI zip-level rent index, adjusted for bedroom count and the unit's quality score. It's a benchmark — use it as one signal when evaluating a listing, not as a guarantee.
We store your email address and analysis history for up to 12 months. We never sell your data or use it to train AI models. Full details in our Privacy Policy.
Credits never expire — they're yours until you use them. Time passes (24hr, 48hr, 7-day) expire as described at purchase.
Not yet — RentLens is Boston-area only right now because our rent benchmarks are calibrated for Boston zip codes. NYC launches September 2026.
Yes. You can upload your own photos instead of using the ones on the listing — or add up to 5 more when a listing has more than 25. Great for swapping in shots from your tour or highlighting specific rooms the listing skipped.
Use our contact form — we typically respond within 24 hours.

Stop guessing on your next apartment.

Boston launch · July 2026

Add to Chrome — it's free

Zillow · Apartments.com · First analysis free